ANWAR, Khoirul; RIZQI, Maulidiyah Amalina. VALIDITY AND RELIABILITY ANALYSIS OF ASSESSMENT FOR CUSTOMER SATISFACTION AT UNIVERSITY OF MUHAMMADIYAH GRESIK. DIDAKTIKA : Jurnal Pemikiran Pendidikan, [S. l.], v. 22, n. 2, p. 141–152, 2018. DOI: 10.30587/didaktika.v22i2.221. Disponível em: https://journal.umg.ac.id/index.php/didaktika/article/view/221. Acesso em: 13 jul. 2025.