Mishra, Angurbala, Subhasmita Biswal, Somadatta Das, Rabindra Nath Padhy, and Bibhuti Bhusan Pradhan. “Social Transmission of Corona Virus: An overview”. Siriraj Medical Journal 72, no. 6 (September 3, 2020): 508–511. accessed April 1, 2025. https://he02.tci-thaijo.org/index.php/sirirajmedj/article/view/243437.