Piyanut Rattha และ Vithaya Chamnanphrai; Angkana Charoenmee; Juttupong Namsom. (2020) Guidelines for the Development of Power Loss Reduction Circuits of Class A Audio Amplifiers using Appropriated Voltage Adjustment Technique with Small Input Signal. <i>Mahasarakham International Journal of Engineering Technology</i>, <i>6</i>(1), 30-35.Piyanut Rattha และ Vithaya Chamnanphrai; Angkana Charoenmee; Juttupong Namsom. "Guidelines for the Development of Power Loss Reduction Circuits of Class A Audio Amplifiers using Appropriated Voltage Adjustment Technique with Small Input Signal". Mahasarakham International Journal of Engineering Technology 6 (2020):30-35.Piyanut Rattha และ Vithaya Chamnanphrai; Angkana Charoenmee; Juttupong Namsom. Guidelines for the Development of Power Loss Reduction Circuits of Class A Audio Amplifiers using Appropriated Voltage Adjustment Technique with Small Input Signal. Faculty of Engineering, Mahasasakham University:ม.ป.ท. 2020.