[1]
A. Faizal, S. Wahyudi, W. Winarto, and I. P. Tama, “Identification of response surface patterns in ultrasound-assisted transesterification of castor oil using CaO-MgO catalysts derived from blood cockle shell and limestone”, EEJET, vol. 3, no. 6 (141), pp. 23–33, Jun. 2026.