Dzakia Fifi Mahardini, Ahmad Zainuri, Romli and Zainal Berlian 2026. The Influence of Spiritual and Adaptive Leadership in Increasing the Competitiveness of Islamic Educational Institutions: A Quantitative Study at the Nurul Ilmi Integrated Educational Institution, Banyuasin Regency. International Journal of Education, Vocational and Social Science . 5, 02 (Jun. 2026), 3383-3396. DOI:https://doi.org/10.63922/ijevss.v5i02.3641.