APA (7th ed.) Citation

Drs. Robert Sibarani, M. (1992). Hakikat Bahasa. PT. Citra Aditya Bakti.

Chicago Style (17th ed.) Citation

Drs. Robert Sibarani, MS. Hakikat Bahasa. PT. Citra Aditya Bakti, 1992.

MLA (8th ed.) Citation

Drs. Robert Sibarani, MS. Hakikat Bahasa. PT. Citra Aditya Bakti, 1992.

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