Henry Yuh Anchunda และ -. (2022) : An Instructional Model Development Based on Task-based Learning Approach and Continuous Effective Oral Practice to Enhance Primary School Students’ English-speaking Ability and Confidence in Phitsanulok Province. <i>Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University</i>, <i>16</i>(2), 478 - 493.Henry Yuh Anchunda และ -. ": An Instructional Model Development Based on Task-based Learning Approach and Continuous Effective Oral Practice to Enhance Primary School Students’ English-speaking Ability and Confidence in Phitsanulok Province". Humanities and Social Sciences Journal of Pibulsongkram Rajabhat University 16 (2022):478 - 493.Henry Yuh Anchunda และ -. : An Instructional Model Development Based on Task-based Learning Approach and Continuous Effective Oral Practice to Enhance Primary School Students’ English-speaking Ability and Confidence in Phitsanulok Province. Pibulsongkram Rajabhat University:ม.ป.ท. 2022.