Abdullah, Hussin, Nor’Aznin Abu Bakar, Mohd Razani Mohd Jali, and Fatimah Wati Ibrahim. 2017. “The Current State of Malaysia’s Journey towards a Green Economy: The Perceptions of The Companies on Environmental Efficiency and Sustainability”. International Journal of Energy Economics and Policy 7 (1):253-58. https://econjournals.com./index.php/ijeep/article/view/3707.