APA (7th ed.) Citation

Khalid, I. L., Harun, R., Muda, A., & Ismail, I. A. (2011). Level of knowledge on environmental issues and enviromental education of primary schools' headmasters in Kuala Lumpur, Malaysia. IDOSI Publications.

Chicago Style (17th ed.) Citation

Khalid, Ika Liana, Rosta Harun, Azizi Muda, and Ismi Arif Ismail. Level of Knowledge on Environmental Issues and Enviromental Education of Primary Schools' Headmasters in Kuala Lumpur, Malaysia. IDOSI Publications, 2011.

MLA (9th ed.) Citation

Khalid, Ika Liana, et al. Level of Knowledge on Environmental Issues and Enviromental Education of Primary Schools' Headmasters in Kuala Lumpur, Malaysia. IDOSI Publications, 2011.