Putmanee, Kuanpis, Chumnan Chaowakeratipong, and Namtip Wipawin. 2021. “INFORMATION USE FOR CONDUCTING SCIENCE PROJECTS AT SCIENCE CENTER FOR EDUCATION BY NON-FORMAL AND INFORMAL EDUCATION OF UPPER SECONDARY LEVEL”. Journal of Liberal Art of Rajamangala University of Technology Suvarnabhumi 3 (2):146-60. https://so03.tci-thaijo.org/index.php/art/article/view/253697.