PERANCANGAN DAN IMPLEMENTASI SISTEM INFORMASI OTOMATIS VIA WHATSAPP "SIJI BANTUL" DI RUTAN KELAS IIB BANTUL. causa [Internet]. 2025 Aug. 19 [cited 2025 Aug. 20];15(9):161-70. Available from: https://ejournal.cahayailmubangsa.institute/index.php/causa/article/view/6492