APA (7th ed.) Citation

EK, O. S. D. (1983). ETIKET KANTOR. GAGRAT.

Chicago Style (17th ed.) Citation

EK, O.P. SIMORANGKIR DRS. ETIKET KANTOR. GAGRAT, 1983.

MLA (8th ed.) Citation

EK, O.P. SIMORANGKIR DRS. ETIKET KANTOR. GAGRAT, 1983.

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