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Submarines of the Imperial Japanese Navy - Wikipedia
Category:World War II submarines of Japan - Wikipedia
WW2 Imperial Japanese Navy Submarines - Naval Encyclopedia
Japanese submarine I-52 (1942) - Wikipedia
THE JAPANESE SUBMARINE FORCE AND WORLD WAR II
Japanese Submarines in World War Two | U.S. Naval Institute
Sensuikan Butai (潜水艦部隊): Researching Submarines of
WW2 Japanese Submarines - Military Factory
Submarines in World War II - U.S. National Park Service
Submarine Combat Patrols Against Japan - NHHC