Guntoro, Dibyo Waskito, et al. “Validity and Reliability Analysis of a Higher Education Decision-Making Instrument in Central Kalimantan”. Jurnal Pembangunan Pendidikan: Fondasi Dan Aplikasi, vol. 12, no. 2, Dec. 2024, https://journal.uny.ac.id/index.php/jppfa/article/view/67137.