Ishmah, Jihan Sabila, Idha Rahayuningsih, and Ima Fitri Sholichah. “The Influence Self Confidence and Peer Social Support towards Optimism In Vocational High School X In Gresik”. Psycho Holistic 5, no. 1 (May 31, 2023): 38–50. Accessed February 2, 2025. https://mbunivpress.or.id/journal/index.php/psychoholistic/article/view/635.