Piara Singh. (2017). Geografi SPM: Tingkatan 4&5. Sasbadi Sdn. Bhd..
Chicago Style (17th ed.) CitationPiara Singh. Geografi SPM: Tingkatan 4&5. Petaling Jaya: Sasbadi Sdn. Bhd., 2017.
MLA (9th ed.) CitationPiara Singh. Geografi SPM: Tingkatan 4&5. Sasbadi Sdn. Bhd., 2017.
Warning: These citations may not always be 100% accurate.