Books by Tadashi Sakamaki
Mitsui Makoto Sensei koki shuk
Mitsui Makoto Sensei koki shukuga ronbunshū
Keiji shōko kaiji no riron to
Keiji shōko kaiji no riron to jitsumu
Kēsubukku Keiji soshōhō
Kēsubukku Keiji soshōhō
Q & A Heisei 19-nen hanzai hig
Q & A Heisei 19-nen hanzai higaisha no tame no keiji tetsuzuki kanrenhō kaisei
Chikujō kaisetsu hanzai higais
Chikujō kaisetsu hanzai higaisha hogo nihō
Keiji shōko kaiji no kenkyū
Keiji shōko kaiji no kenkyū