APA (7th ed.) Citation

HP, A., & Abdullah, A. (2012). Linguistik umum. Erlangga.

Chicago Style (17th ed.) Citation

HP, Achmad, and Alex Abdullah. Linguistik Umum. Erlangga, 2012.

MLA (8th ed.) Citation

HP, Achmad, and Alex Abdullah. Linguistik Umum. Erlangga, 2012.

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