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.
Chicago-čujuhus (17. p.)Lee, Li Li, juo 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-čujuhus (9. p.)Lee, Li Li, juo Aldrin Abdullah. Solar Heater System Implementation As A Front Step In Overcoming The Global Warming Issues: Case Studies In Seberang Perai Selatan, Penang. 2008.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.