Hafidzoh Mukhtar. (2011). Ride Through of the adjustable speed drive due to unsymmetrical voltage sags. School of Electrical System Engineering, University Malaysia Perlis.

Hafidzoh Mukhtar. Ride Through of the Adjustable Speed Drive Due to Unsymmetrical Voltage Sags. Kangar, Perlis: School of Electrical System Engineering, University Malaysia Perlis, 2011.

Hafidzoh Mukhtar. Ride Through of the Adjustable Speed Drive Due to Unsymmetrical Voltage Sags. School of Electrical System Engineering, University Malaysia Perlis, 2011.