"厳戒の中、不発弾撤去 久留米市 [福岡県]" [Removal of UXO in Kurume (Fukuoka Prefecture) conducted under strict supervision] (in Japanese). nishinippon.co.jp. 15 April 2014. Archived from the original on 15 April 2014.
"Land". Strategic Environmental Research and Development Program, Environmental Security Technology Certification Program. Archived from the original on 9 January 2014.
"厳戒の中、不発弾撤去 久留米市 [福岡県]" [Removal of UXO in Kurume (Fukuoka Prefecture) conducted under strict supervision] (in Japanese). nishinippon.co.jp. 15 April 2014. Archived from the original on 15 April 2014.
"Land". Strategic Environmental Research and Development Program, Environmental Security Technology Certification Program. Archived from the original on 9 January 2014.