Anggraeni, S. (2026) “Implementasi Sistem Pengelolaan Surat Permohonan Eksternal Berbasis Google Apps Script di PT XYZ: Implementation of a Google Apps Script-Based External Request Letter Management System at PT XYZ”, JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat), 10(2), pp. 143–153. doi: 10.30595/jppm.v10i2.30951.