Gaya APA
Hatta, M., Yasni, Z.
(1981).
Bung Hatta's Answers
.
Singapore:
Gunung Agung (S) Pte Ltd & PT Gunung Agung.
Gaya MLA
Hatta, Mohammad., Yasni, Z.
"Bung Hatta's Answers".
Singapore:
Gunung Agung (S) Pte Ltd & PT Gunung Agung,
1981.
Academic.