Dkhar, Rupaki Effect of e-learning materials on learning performance of class IX students, West Jaintia Hills District - Shillong Department of Education, NEHU 2017 - iii,58p.:ill.;28cm. Subjects--Topical Terms: Computrer-assisted instruction-India-Meghalaya-West Jaintia Hills-research Dewey Class. No.: 371.334071254164 / DKH