Hastuti, Dwi, Alfiasari Alfiasari, Neti Hernawati, Oktriyanto Oktriyanto, and Mardiana Dwi Puspitasari. “EFFECTIVENESS OF ‘PIK-R’ PROGRAM AS AN EXTRACURRICULAR FOR HIGH VOCATIONAL SCHOOL STUDENTS IN PREVENTING NEGATIVE BEHAVIORS OF ADOLESCENTS”. Jurnal Cakrawala Pendidikan 38, no. 1 (February 4, 2019): 1–15. Accessed June 2, 2025. https://journal.uny.ac.id/index.php/cp/article/view/22283.