Mardiani, Eri, Eva Yuniarti Utami, and Muhammad Umer Farooq Mujahid. 2023. “B2B Digital Marketing and ROI Measurement: Challenges and Opportunities in the Business-to-Business Industry for MSMEs in Indonesia”. West Science Interdisciplinary Studies 1 (09):879-87. https://doi.org/10.58812/wsis.v1i09.249.