APA Citation

Harahap, A. E. (1978). Hitung dagang (Jilid IV). Effendiharahap Publishing Coy.

Chicago Style Citation

Harahap, A. Effendi. Hitung Dagang (Jilid IV). Effendiharahap Publishing Coy, 1978.

MLA Citation

Harahap, A. Effendi. Hitung Dagang (Jilid IV). Effendiharahap Publishing Coy, 1978.

Warning: These citations may not always be 100% accurate.