Laupa, J. (2017). Biodesel daripada bahan buangan prosesan sawit. Utusan Melayu (M) Berhad.
Chicago Style (17th ed.) CitationLaupa, Junus. Biodesel Daripada Bahan Buangan Prosesan Sawit. Utusan Melayu (M) Berhad, 2017.
MLA (8th ed.) CitationLaupa, Junus. Biodesel Daripada Bahan Buangan Prosesan Sawit. Utusan Melayu (M) Berhad, 2017.
Warning: These citations may not always be 100% accurate.