Mohamad Nasir, Nur Nasliza Arina, and Jamilah Hj Ahmad. “Effective Environmental Communication: A Case Study of Environmental NonGovernment Organization (ENGO) in Malaysia”. Journal of Social and Development Sciences, vol. 4, no. 6, June 2013, pp. 242-8, https://doi.org/10.22610/jsds.v4i6.758.