Raja, M. ., Kurlillah, A., Astina, C., Zulhilmi, Z., & Fazal Ahmed, O. A. (2025). Self-declare halal certification in Langsa city: Empowering MSMEs for quality consumption. International Journal of Halal Industry, 1(2), 117–132. https://doi.org/10.20885/IJHI.vol1.iss2.art1