Ardiyana Pertiwi, Johannes P. Kumagaya, & Irene Brainnita Oktarin. (2025). The Effect of Product Innovation on Purchasing Decisions for Custom T-shirts with Quality as a Moderating Variable (Study on Sarkastem Lampung Tengah). International Journal of Business, Marketing, Economics &Amp; Leadership (IJBMEL), 2(2), 11–16. https://doi.org/10.70142/ijbmel.v2i2.314