Gaya APA

SULAIMAN, Sutan. (1956). Sistem 50 jam : the fifty hours method jil.1 . Jakarta: ZAS.

Gaya Chicago

SULAIMAN, Sutan. Sistem 50 jam : the fifty hours method jil.1. Jakarta: ZAS, 1956. Text.

Gaya MLA

SULAIMAN, Sutan. Sistem 50 jam : the fifty hours method jil.1. Jakarta: ZAS, 1956. Text.

Gaya Turabian

SULAIMAN, Sutan. Sistem 50 jam : the fifty hours method jil.1. Jakarta: ZAS, 1956. Print.