Purnama, H., and R. Harman. “ANALISIS KUALITAS LAYANAN WEBSITE BADAN KEAMANAN LAUT REPUBLIK INDONESIA MENGGUNAKAN METODE WEBQUAL 4.0”. Computer and Science Industrial Engineering (COMASIE), vol. 1, no. 01, Nov. 2019, pp. 142-5, https://forum.upbatam.ac.id/index.php/comasiejournal/article/view/1580.