Rukslin, Muhlasin, Agus Raikhani, and Kadaryono, “Desain Pengaturan Pitch Angle Pada Turbin Angin Dengan Permanent Magnet Synchronous Generator (PMSG) Berbasis Metode Ziegler-Nichols”, jintake, vol. 6, no. 1, pp. 75-87, Apr. 2015.