Pratama, Widhy Andrian. “Penegakan Hukuman Mati terhadap Pembunuhan Berencana”. SIGn Jurnal Hukum 1, no. 1 (September 7, 2019): 29–41. Diakses September 26, 2026. https://jurnal.penerbitsign.com/index.php/sjh/article/view/v1n1-29-41.