Aynun Nurul Ulufah, Prim Masrokan Mutohar, Ahmad Tanzeh and Daud Sukoco 2026. Educational Services Marketing Strategy Based GLS to Increase Customer Interest Study Sequential Exploratory Design Mix Method. International Journal of Interdisciplinary Research. 2, 2 (Jul. 2026), 455–485. DOI:https://doi.org/10.71305/ijir.v2i2.1810.