Cheng. (1998). Ensiklopedia sains muda: Mesin. Penerbit Pan Earth.
Chicago Style (17th ed.) CitationCheng. Ensiklopedia Sains Muda: Mesin. Petaling Jaya: Penerbit Pan Earth, 1998.
MLA (8th ed.) CitationCheng. Ensiklopedia Sains Muda: Mesin. Penerbit Pan Earth, 1998.
Warning: These citations may not always be 100% accurate.