Triyanti V, Yassierli Y. Basic Emotion Recogniton using Automatic Facial Expression Analysis Software. J. Optimasi Sist. Ind. [Internet]. 2019 May 16 [cited 2025 Jan. 22];18(1):55–64. Available from: http://josi.ft.unand.ac.id/index.php/josi/article/view/183