APA Style

Oltmans, Willem. (-). Indonesia di Obok-Obok . Jakarta: Pustaka Sinar Harapan.

Chicago Style

Oltmans, Willem. Indonesia di Obok-Obok. Jakarta: Pustaka Sinar Harapan, -. Text.

MLA Style

Oltmans, Willem. Indonesia di Obok-Obok. Jakarta: Pustaka Sinar Harapan, -. Text.

Turabian Style

Oltmans, Willem. Indonesia di Obok-Obok. Jakarta: Pustaka Sinar Harapan, -. Print.