Wianda, D. R., & Hamid, A. (2026). EXPERIMENTAL STUDY ON THE PERFORMANCE OF A SPIRAL TYPE HORIZONTAL AXIS WIND TURBINE DUE TO THE EXPANSION OF THE INNER DIAMETER OF THE TURBINE. Jurnal Teknik Mesin (Journal Of Mechanical Engineering), 15(01), 1–6. https://doi.org/10.22441/jtm.v15i01.18700