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 (Jan. 2025). DOI:https://doi.org/10.30651/psychoseries.v1i1.25265.