UDAYANA, I Putu Agus Eka Darma; KHERISMAWATI, Ni Putu Eka; SUDIPA, I Gede Iwan. Detection of Student Drowsiness Using Ensemble Regression Trees in Online Learning During a COVID-19 Pandemic. Telematika: Jurnal Telematika dan Teknologi Informasi, [S. l.], v. 19, n. 2, p. 229–244, 2022. DOI: 10.31315/telematika.v19i2.7044. Disponível em: https://jurnal.upnyk.ac.id/index.php/telematika/article/view/7044. Acesso em: 5 dec. 2025.