SULISTIKA MELANI SIBARANI; LIWINA DACHI; SIAGIAN, Krisna Yosef Alosius; SANANTA PERANGIN ANGIN; BINARIA JULIANA SIMAMORA; JONTRA JUSAT PANGARIBUAN. Student Involvement in Extracurricular and its Impact on Achievement in Private Junior High School Santo Petrus Medan. INTERNATIONAL JOURNAL OF ADVANCED ACADEMIC , [S. l.], v. 1, n. 04, p. 116–123, 2025. DOI: 10.3951.vol1iss4no5pp116. Disponível em: https://ejournal.pustakakaryamandiri.com/ojs/index.php/ijaa/article/view/112. Acesso em: 23 jul. 2025.