Pem Chencho และ Maneerat Ekkayokkaya. (2022) Effects of Vocabulary Instruction Using Bottom-up and Top-down Instructional Approaches on Bhutanese Secondary Students' Vocabulary Knowledge. <i>An Online Journal of Education</i>, <i>17</i>(1), OJED1701013 (13 pages).Pem Chencho และ Maneerat Ekkayokkaya. "Effects of Vocabulary Instruction Using Bottom-up and Top-down Instructional Approaches on Bhutanese Secondary Students' Vocabulary Knowledge". An Online Journal of Education 17 (2022):OJED1701013 (13 pages).Pem Chencho และ Maneerat Ekkayokkaya. Effects of Vocabulary Instruction Using Bottom-up and Top-down Instructional Approaches on Bhutanese Secondary Students' Vocabulary Knowledge. Centre for Educational Innovation, Print and Online Media Chulalongkorn University:ม.ป.ท. 2022.