“THE EFFECTIVENESS OF PROBLEM-SOLVING-BASED INFORMATION SERVICES IN IMPROVING THE HIGH ORDER THINKING SKILLS OF ADOLESCENTS AT TANJUNG GUNDAP”. PROCEEDING OF INTERNATIONAL CONFERENCE ON MULTIDISCIPLINARY STUDY, vol. 2, no. 1, Januari 2025, hlm. 83-94, https://proceeding.unrika.ac.id/index.php/ICMS/article/view/59.