Hasibuan , H. A. H. ., Harahap, U. N. ., Zaharuddin, Z. ., & Idris, M. . (2025). Application of Kansei Engineering Method in Soap Product Innovation. IRA Jurnal Teknik Mesin Dan Aplikasinya (IRAJTMA), 4(1), 120–127. https://doi.org/10.56862/irajtma.v4i1.182