Halim Razali, Kamaruzzaman Sopian, & Sohif Mat. (2012). Hidrogen: Bahan api enjin pembakaran dalam. Penerbit UKM.
Chicago Style (17th ed.) CitationHalim Razali, Kamaruzzaman Sopian, and Sohif Mat. Hidrogen: Bahan Api Enjin Pembakaran Dalam. Bangi, Selangor: Penerbit UKM, 2012.
MLA (9th ed.) CitationHalim Razali, et al. Hidrogen: Bahan Api Enjin Pembakaran Dalam. Penerbit UKM, 2012.
Warning: These citations may not always be 100% accurate.