Anggun, Tiara Anggun Arini, et al. “Differences in Horizontal Angulation Shift in Periapical Radiography Techniques to The Position of The Apical Foramen of Maxillary First Premolars”. YARSI Dental Journal, vol. 2, no. 1, Aug. 2024, pp. 31-37, https://academicjournal.yarsi.ac.id/ojs3/index.php/dentalj/article/view/172.