V. Uyen, N. Duyên, T. Trà Giang, V. Thảo Nguyên, N. Tuấn, and P. Yến, “Factors affecting Vietnam’s coffee export in the period of 2008 - 2020”, Science & Technology Development Journal: Economics- Law & Management, vol. 6, no. 4, pp. 3867-3886, Jan. 2023.