Anjelita, P., and E. Rosiska. “RANCANG BANGUN SISTEM INFORMASI E-LEARNING PADA SMK NEGERI 3 BATAM”. Computer and Science Industrial Engineering (COMASIE), vol. 1, no. 01, Nov. 2019, pp. 132-41, https://forum.upbatam.ac.id/index.php/comasiejournal/article/view/1572.