Goa Jepang/Japanse grot (BI-01)

April. 2012. “A WRITER’S NOTES: War Hero.” A WRITER’S NOTES (blog). June 12, 2012. http://awritersnotes.blogspot.com/2012/06/war-hero.html.

PacificWrecks.com. n.d. “Pacific Wrecks - Japanese Cave on Biak (Goa Jepang, Gojep), Biak Numfor Regency, Papua Province, Indonesia.” Accessed January 28, 2021. https://www.pacificwrecks.com/provinces/irian_biak_goa_jepang.html.

Puspita, Renny. 2014. “Live Is An Adventure: Goa Jepang Binsari Biak.” Live Is An Adventure (blog). Minggu,  Desember 2014. https://mytravelingphotograph.blogspot.com/2014/12/goa-jepang-binsari-biak.html.