Nur Ahzan, Zulkaidah, et al. “Confirmatory Factor Analysis of Mathematics Learning Interaction in Google Classroom: A Validation Study at Ciamis Vocational School”. Mosharafa: Jurnal Pendidikan Matematika, vol. 14, no. 2, Apr. 2025, pp. 513-34, doi:10.31980/mosharafa.v14i2.3025.