Simanjuntak, M., T. Pasaribu, and S. Rahmadilla. “Implementasi Algoritma Merkle Hellman Untuk Keamanan Database”. MEANS (Media Informasi Analisa Dan Sistem), vol. 4, no. 1, June 2019, pp. 46-50, https://ejournal.ust.ac.id/index.php/Jurnal_Means/article/view/327.