PANGGABEAN, K.; DELIATI, D.; HARAHAP, M. F. Efforts to Reduce Academic Procrastination Behavior Through Group Counseling Services Behavioral Contract Technique Behavioral Approach of Class X Students of SMK Negeri 4 Medan. Jurnal Riset Ilmu Pendidikan, [S. l.], v. 5, n. 2, p. 392–396, 2025. DOI: 10.56495/jrip.v5i2.1054. Disponível em: https://jurnal.larisma.or.id/index.php/JRIP/article/view/1054. Acesso em: 24 aug. 2025.