Katuuk, A. ., H. R. Lumapow, and R. . Mongdong. “Extracurricular Sports Achievements of Students at SMAN 1 Manganitu Selatan, Sangihe Islands Regency”. International Journal of Information Technology and Education, vol. 4, no. 2, Mar. 2025, pp. 118-23, http://ijite.jredu.id/index.php/ijite/article/view/252.