Priyanto P, Sofyan H, Surjono HD. The determinats of e-learning usage by teachers of vocational high schools in the Yogyakarta Special Region. jpv [Internet]. 2017 Feb. 28 [cited 2025 May 9];7(1):1-13. Available from: https://journal.uny.ac.id/index.php/jpv/article/view/12770