Lee, L. L., & Abdullah, A. (2008). Solar Heater System Implementation As A Front Step In Overcoming The Global Warming Issues: Case Studies In Seberang Perai Selatan, Penang.
Čikaški stil citiranja (17. izdanje)Lee, Li Li, i Aldrin Abdullah. Solar Heater System Implementation As A Front Step In Overcoming The Global Warming Issues: Case Studies In Seberang Perai Selatan, Penang. 2008.
MLA način citiranja (9. izdanje)Lee, Li Li, i Aldrin Abdullah. Solar Heater System Implementation As A Front Step In Overcoming The Global Warming Issues: Case Studies In Seberang Perai Selatan, Penang. 2008.
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