APA (7th ed.) Citation

Siregar, R., & Chu, D. A. (1996). Tenis tenaga. Raja Grafindo Persada.

Chicago Style (17th ed.) Citation

Siregar, Razi, and Donald A. Chu. Tenis Tenaga. Raja Grafindo Persada, 1996.

MLA (8th ed.) Citation

Siregar, Razi, and Donald A. Chu. Tenis Tenaga. Raja Grafindo Persada, 1996.

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