KHOIRUNNISA, Ananda; INDAH, Dwi Rosa; ARIANI, Ardina; WEDHASMARA, Ari; PASEMAH GUMAY, Naretha Kawadha; SANJAYA, M. Rudi; FEBRIADY, Mukhlis. E-Service Quality Analysis of the MyTelkomsel Application Using CSI, IPA, and PGCV . Ultima InfoSys : Jurnal Ilmu Sistem Informasi, [S. l.], v. 17, n. 1, p. 16–27, 2026. DOI: 10.31937/si.v17i1.4497. Disponível em: https://ejournals.umn.ac.id/index.php/SI/article/view/4497. Acesso em: 14 jul. 2026.