Arum Rovarti Ningsih, Pramana, A., Putri, N.N.D., Ihsan, F., Endyra, F. and Masyitah, M. 2026. Analysis of Added Value Brownies Product Using the Hayami Method (Case Study: Syiaghi MSME in Pekanbaru City). Journal of Engineering Science and Technology Management (JES-TM). 6, 1 (Mar. 2026), 271–280. DOI:https://doi.org/10.31004/jestm.v6i1.433.