Heliena, Frydean, et al. “SECURING ACCESS CONTROL TO SECURITY RESTRICTED AREAS AT THE CARGO SECURITY CHECK POINT (SSCP) STAFF AT SULTAN MAHMUD BADARUDDIN II PALEMBANG INTERNATIONAL AIRPORT”. Journal of Engineering and Transportation , vol. 1, no. 1, Dec. 2023, pp. 26-34, https://ciptakind-publisher.com/jet/index.php/ojs/article/view/4.