Marpaung, G., Bowo, P., Suseno, D., Putri, P. and Kumala, S. 2020. COUNTERMEASURES OF NEGATIVE EXTERNALITY THROUGH THE UTILIZATION OF USED GOODS FOR LIVE PHARMACIES. Indonesian Journal of Devotion and Empowerment. 2, 2 (Dec. 2020), 1-5. DOI:https://doi.org/10.15294/ijde.v2i2.42001.