Jyunsen 2 submarine I-6 blueprint :
Submarines of the IJN 1904-45 p. 97.
KD7 I-176 submarine :
Submarines of the IJN 1904-45 p. 108.
Sen Taka I-201 submarine blueprint :
Submarines of the IJN 1904-45 p. 117.
RO 35 submarine :
Submarines of the IJN 1904-45 p. 125.
keltos