Pushpawelage, S. (2005). Usas pela vyapara adhyayanaya 1 saha 11: Nava nirdeshaya prashnoththara sangrahaya. Godage.
Chicago Style (17th ed.) CitationPushpawelage, Sampath. Usas Pela Vyapara Adhyayanaya 1 Saha 11: Nava Nirdeshaya Prashnoththara Sangrahaya. Colombo: Godage, 2005.
MLA (9th ed.) CitationPushpawelage, Sampath. Usas Pela Vyapara Adhyayanaya 1 Saha 11: Nava Nirdeshaya Prashnoththara Sangrahaya. Godage, 2005.
Warning: These citations may not always be 100% accurate.