Nurul 'Ain Helan Nor. (2013). Study on effectiveness of LED as street lighting.
Čikaški stil citiranja (17. izdanje)Nurul 'Ain Helan Nor. Study on Effectiveness of LED as Street Lighting. 2013.
MLA način citiranja (8. izdanje)Nurul 'Ain Helan Nor. Study on Effectiveness of LED as Street Lighting. 2013.
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