Arifin, Yusnaini, and Ardi Amir. 2012. “PEMODELAN DAN PENGENDALIAN MOTOR LISTRIK U.S ELECTRIC MOTORS TYPE DRIPPROOF 1750 RPM/40 HP/240 Volt”. JURNAL ILMIAH MATEMATIKA DAN TERAPAN 6 (1). https://doi.org/10.22487/2540766X.2009.v6.i1.15.