W. Annisa and Andala Rama Putra Barusman, “Widya The Influence Of Lecture Flexibility, University Reputation, And Reference Groups On The Decision To Choose An Executive/Employee Class Program At Private Higher Education Institutions (A Study At Universitas Bandar Lampung)”, IJEVSS, vol. 5, no. 03, pp. 8014-8031, Aug. 2026.