[1]
SiregarE., HolilaA. and AhmadM. 2020. THE VALIDITY OF LEARNING DEVICES WITH A CONTEXTUAL APPROACH TO IMPROVE CONCEPT UNDERSTANDING ABILITIES. Akademika : Jurnal Teknologi Pendidikan. 9, 02 (Nov. 2020), 145-159. DOI:https://doi.org/10.34005/akademika.v9i02.929.