Syaveny, Niza, dan Indra Johari. “Correlation Between Class Participation and Motivation on students’ English Achievement at SMA Negeri 12 Padang, Kec Nanggalo of West Sumatera”. Journal Of Language Education and Development (JLed) 2, no. 1 (Desember 31, 2019): 205–212. Diakses Mei 18, 2024. https://ejournal.ummuba.ac.id/index.php/pbi/article/view/167.