Eko Hardi Ansyah and Ananda Indria Yulianti (2025) “THE INFLUENCE OF SELF-EFFICACY AND PEER CONFORMITY ON ACADEMIC PROCRASTINATION AMONG STUDENTS AT PRIVATE VOCATIONAL HIGH SCHOOL IN NGANJUK”, Proceeding Series Fakultas Psikologi Universitas Muhammadiyah Surabaya, 1(1). doi: 10.30651/psychoseries.v1i1.25265.