Wianda DR, Hamid A. EXPERIMENTAL STUDY ON THE PERFORMANCE OF A SPIRAL TYPE HORIZONTAL AXIS WIND TURBINE DUE TO THE EXPANSION OF THE INNER DIAMETER OF THE TURBINE. JTM [Internet]. 2026 Jan. 28 [cited 2026 May 28];15(01):1-6. Available from: https://training-ojs3-publikasi.mercubuana.ac.id/index.php/jtm/article/view/18700