Dr. Perways Alam. “THE CHALLENGES OF IMPORT CLEARANCE PROCEDURE ON TRADE FACILITATION: THE CASE OF JIGJIGA BRANCH CUSTOMS OFFICE”. International Journal of Trade and Global Business Perspectives, Vol. 7, no. 04, Dec. 2018, pp. 4065-74, https://tgbp.gfer.org/index.php/tgbp/article/view/18.