VO THI HUONG; NGUYEN NGOC QUANG; CHU THI THANH THO; PHAM NGOC THANG; DO THANH HIEU. AN IMPROVED P&O MAXIMUM POWER POINT TRACKING METHOD FOR PHOTOVOLTAIC SYSTEMS UNDER RAPIDLY CHANGING IRRADIANCE CONDITIONS. UTEHY Journal of Science and Technology, v. 19, p. 22-28, 10 Oct. 2018.