1. Standard Catalog of World Paper Money (“General Issues” for the Japanese Invasion Money and Victory Notes, “Specialized” for Guerrilla Money)
2. Shafer, Neil – Philippine Emergency and Guerrilla Currency of World War II, 1st ed. 1974 Western Publishing Co., Inc. (out of print – Getting revision later this year?)
3. -,- A Guide Book of Philippine Paper Money, 1st ed. 1964 Whitman Publishing Company  (out of print)
4. World War II Remembered: History in Your Hands, a Numismatic Study (out of print, eBay seems to usually have a copy or two listed though)
5. Dr. Kenneth J.E. Berger, “Philippine Emergency Notes: Counterstamped, Signed & Initialed (CSI) – Cebu Province”. 210p., 2016
6. Dr. Kenneth J.E. Berger, “Philippine Emergency Notes: Counterstamped, Signed & Initialed (CSI) – Cebu Province (Second Edition)”. 287p., 2019
7. Dr. Kenneth J.E. Berger, “Philippine Emergency Notes: Counterstamped, Signed & Initialed (CSI) – Iloilo & Leyte Provinces.” 144p., 2022
8. Dr. Kenneth J.E. Berger, The Numismatist (Cebu Emergency Notes of World War II), 106(5), May 1993
9. Barrilla articles:
   • Anonymous, “Unlisted Guerrilla Notes in the Money Museum Collection”, Barrilla I(2), Oct 1974
   • -, “The Cagayan Resistance Currency”, Barrilla II(3), Jul 1975
   • -, “‘Cone’ Money – an Interview with Former Speaker Cornelio Villareal”, Barrilla V(4), Oct 1978
   • Catlin, M. F., “U.S. Guerrillas on Mindanao and Their Money: A Change in Status After the Japanese Attack (1st of 4 parts)”, Barrilla VI(3), Jul 1979
   • -,-, “General Fertig’s Guerrillas on Mindanao and Their Money (2nd of 4 parts)”, Barrilla VI(4), Oct 1979
   • -,-., “U. S. Guerrillas on Mindanao and Their Money: U. S. Guerrillas on the Run (3rd of 4 parts)”, Barrilla VII(1), Jan 1980
   • -,-., “U.S. Guerrillas on Mindanao and Their Money: The War ends.  Was the Guerrilla Money Redeemed? (4th of 4 parts)”, Barrilla VII(2), Jul 1980
   • Davis, G “Japanese Invasion Money”, Barrilla V(3), Jul 1978
   • Nielsen, C. M., “The Negros Guerrilla Currency, Query” & “Response”, Montelibano, A., Barrilla IV(4), Oct 1977
   • Quisumbing, M. V., “The Saiton Emergency Circulating Note of 1943”, Barrilla V(2), Apr 1978
10. Banyai, R. A.., Money and Banking in China and Southeast Asia during the Japanese Military Occupation 1937-1945 (Chapter 16 – Philippine Islands – pp 89-110), Taiwan Enterprises Co., Ltd., 1974
11. Drost, F. “Mindanao WWII Emergency Currency Revisited”, Numismatics International Bulletin 22(9), Sep 1988
12. Peterson, M. L., “The Emergency Currency of Leyte”, Reprinted from The Numismatist.  Colorado Springs, CO: The American Numismatic Association, 1962
13. Segura, M. F., “Wartime Money”, pp 419-439.  In Segura, M.F., The Koga Papers. Stories of WWII.  Cebu, Philippines: M.F. Segura Publications, 1992
14. Slabaugh, A.R., Japanese Invasion Money. Chicago, Il: Hewitt Bros., 1971
15. Legarda, Angelita, M.D., Piloncitos to Pesos, 1976 (focuses more on the origins of the coinage for the Philippines, but has a small section on the sea salvage portion)
16. Wolfert, I. American Guerrilla in the Philippines. Ch 18 pp 150-154, New York, NT: Simon & Schuster, 1945

Official Army history of Philippine guerrilla activity during WWII
PBS article from “The American Experience” interviewing certain key figures
Books about the Philippines during WWII (Amazon)
Books about the Philippines during WWII (eBay)