Akpanibah, E. E., Samaila, S. K., & Esabai, A. M. (2026). AN INVESTOR’S OPTIMAL PLAN IN A DC SCHEME WITH REFUND OF CONTRIBUTIONS FOR MORTGAGE HOUSING SCHEME. BAREKENG: Jurnal Ilmu Matematika Dan Terapan, 20(2), 1421–1436. https://doi.org/10.30598/barekengvol20iss2pp1421–1436