Zakiatul Nur Safitri, Wulan Purnamasari, & Nur Haliza. (2026). The Influence of Perceived Ease of Use, Consumer Trust, and After-Sales Service on Purchase Intention Through Perceived Usefulness (on the Purchase of Epson Brand Projectors). Escalate : Economics and Business Journal, 4(3), 814–826. https://doi.org/10.61536/escalate.v4i3.829