Muhardis, Muhardis, Burhanuddin Tola, and Herwindo Haribowo. “The Respondent Factors on the Digital Questionnaire Responses”. REID (Research and Evaluation in Education) 5, no. 2 (December 26, 2019): 144–151. Accessed May 9, 2025. https://journal.uny.ac.id/index.php/reid/article/view/26943.