Trefalt, Beatrice (1999) "A Straggler Returns: Onoda Hirō and Japanese Memories of the War" War & Society 17(2): pp. 111–124, doi:10.1179/072924799791201470
Heaney, L.R.; Balete, D.S.; Veluz, M.J.; Steppan, S.J.; Esseltyn, J.A.; Pfeiffer, A.W.; Rickart, E.A. Two new species of Philippine forest mice (Apomys, Muridae, Rodentia) from Lubang and Luzon Islands, with a redescription of Apomys sacobianus Johnson, 1962. Proceedings of the Biological Society of Washington. 2014, 126 (4): 395–413. doi:10.2988/0006-324X-126.4.395.