Mahaad Issa Shammas, Catia Algieri, Gerardo Coppola, and Sudip Chakraborty. 2022. “Impact of the COVID-19 Face Mask Disposal on Environment and Perception of People of the Sultanate of Oman”. The Ethiopian Journal of Health Development 36 (2). https://ejhd.org/index.php/ejhd/article/view/5240.