APA (7th ed.) Citation

SIMORANGKIR, O. (1987). Masalah Pokok Pemasaran. Yagrat.

Chicago Style (17th ed.) Citation

SIMORANGKIR, O.P. Masalah Pokok Pemasaran. Yagrat, 1987.

MLA (8th ed.) Citation

SIMORANGKIR, O.P. Masalah Pokok Pemasaran. Yagrat, 1987.

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