APA (7th ed.) Citation

Halling & Mohd Zubil Bahak. (1997). Pengenalan tribologic. UTM.

Chicago Style (17th ed.) Citation

Halling and Mohd Zubil Bahak. Pengenalan Tribologic. Johor: UTM, 1997.

MLA (8th ed.) Citation

Halling and Mohd Zubil Bahak. Pengenalan Tribologic. UTM, 1997.

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