Nguyen, T. and Duong, L. (2019) “RENOVATED DESIGN OF SOLAR PUSH-PULL TRICYCLE FOR HANDICAPPED PEOPLE”, TRA VINH UNIVERSITY JOURNAL OF SCIENCE; p-ISSN: 2815-6072; e-ISSN: 2815-6099, 9(36), pp. 31-38. doi: 10.35382/18594816.1.36.2019.314.