Maruf, MD. Kamrul Hasan, Subrata Saha, Md. Rakibul Hasan Baten, and Dilruba Akter. “Assessing the Existence of Gravity Model for Bangladesh’s Trade: A Panel Data Analysis ”. South Asian Journal of Social Sciences and Humanities 1, no. 3 (December 5, 2020): 71–92. Accessed November 24, 2024. https://acspublisher.com/journals/index.php/sajssh/article/view/1158.