Sihombing, C. et al. 2020. WHATSAPP-BASED E-LEARNING IMPLEMENTATION ON VALUES LEARNING PANCASILA IN CLASS V SD NEGERI 122351 INTRODUCTION. International Conference on Health Science, Green Economics, Educational Review and Technology. 2, (Dec. 2020), 317–332. DOI:https://doi.org/10.54443/ihert.v2i.78.