Gaya APA
Watanabe, K. ().
Problim solving 101: A simple book for smart people (Cet. 1).
Jakarta:
PT Elex Media Komputindo.
Gaya MLA
Watanabe, Kensuke.
"Problim solving 101: A simple book for smart people".
Cet. 1
Jakarta:
PT Elex Media Komputindo,
.
.