Ruwantro, Bambang, Yosaphat Sumardi, and Denny Darmawan. “THE SEISMIC CHARACTERISTICS OF NORTHERN PART OF KULONPROGO”. Jurnal Penelitian Saintek 21, no. 1 (February 16, 2017): 66–74. Accessed May 14, 2025. https://jurnal.uny.ac.id/index.php/saintek/article/view/10548.