Panggabean, Erwin, R. Mahdelena Simanjorang, Wira Apriani, Nuraisana Nuraisana, Hartati Palentina Sipahutar, and Tesalonika Pesta Siagian. “Integrated Cnn Based Facial Emotion Detection And Camera Based PPG Heart Rate Monitoring”. Journal of Computer Networks, Architecture and High Performance Computing 7, no. 3 (July 10, 2025): 711–719. Accessed May 24, 2026. https://itscience-indexing.com/jurnal/index.php/CNAPC/article/view/6299.