APA (7th ed.) Citation

Heijer, P., & Tolsma, R. (1987). Komunkasi data. Gramedia.

Chicago Style (17th ed.) Citation

Heijer, P.C, and R. Tolsma. Komunkasi Data. Gramedia, 1987.

MLA (8th ed.) Citation

Heijer, P.C, and R. Tolsma. Komunkasi Data. Gramedia, 1987.

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