Sakulkarn Waleeittipat and Parichat Pitisutti 2024. The Multilevel Mediating Effects Of Teacher Training And Extension Courses On The Relationships Among Teacher Support, Motivation, And Self-Efficacy In Mathematics. Educational Administration: Theory and Practice. 30, 6 (Jun. 2024), 104–110. DOI:https://doi.org/10.53555/kuey.v30i6.5118.