Samah, Irza Hanie Abu, Intan Maizura Abd Rashid, Wan Ahmad Fauzi Wan Husain, Suraiya Ibrahim, Hariri Hamzah, and Mohammad Harith Amlus. 2020. “The Impact of Healthcare Expenditure and Healthcare Sector Growth on CO2 Emission Using Dynamic Panel Data System GMM Estimation Model During COVID 19 Crisis”. International Journal of Energy Economics and Policy 10 (6):235-41. https://econjournals.com/index.php/ijeep/article/view/9769.