Riwa AK, Lede PARL, Abineno RT. Extracurricular Management Information System at SMPN 1 Umbu Ratu Nggay Central Sumba Regency. j. of artif. intell. and eng. appl. [Internet]. 2026 Jun. 18 [cited 2026 Jul. 6];5(3):4564-72. Available from: https://ioinformatic.org/index.php/JAIEA/article/view/2468