Hadiyat, Mochammad Arbi, Bertha Maya Sopha, and Budhi Sholeh Wibowo. “Quasi-Experimental Based on Cross-Section Historical Data: An Initial Alternative Framework for Analyzing Causality in Manufacturing Process”. Prosiding Seminar Nasional Teknik Industri (SENASTI) 1 (October 3, 2023): 840–850. Accessed October 16, 2025. https://ojs.uajy.ac.id/index.php/SENASTI/article/view/8014.