TY - BOOK AU - Mongar Tara Devi. TI - The use of physical manipulatives in grade nine chemistry instructions in a Bhutanese classroom U1 - TD 378.2 PY - 2021/// CY - Samtse PB - Samtse Collge of Education KW - Problem solving skills KW - Chemistry KW - Motivation KW - Quasi-experimental design N1 - Thesis (M.Ed), Samtse College of Education, 2020 ER -