Suvapan Suvapong. (2026) The Effects of Problem-Based Learning on Science Learning Achievement and Scientific Mind in the Topic of the Movement of the Sun for Grade 3 Students. <i>An Online Journal of Education (OJED)</i>, <i>21</i>(1), 1-15.Suvapan Suvapong. "The Effects of Problem-Based Learning on Science Learning Achievement and Scientific Mind in the Topic of the Movement of the Sun for Grade 3 Students". An Online Journal of Education (OJED) 21 (2026):1-15.Suvapan Suvapong. The Effects of Problem-Based Learning on Science Learning Achievement and Scientific Mind in the Topic of the Movement of the Sun for Grade 3 Students. Centre for Education Innovation, Print and Online Media:ม.ป.ท. 2026.