ROSYE H. R. TANJUNG and YOHANIS NGILI 2019. Evaluation of anti-bacterial activity of ethanolic extract of genus piper sp. (Funded work) . International Journal of Pharma and Bio Sciences. 10, 2 (Jun. 2019), 138–143. DOI:https://doi.org/10.22376/ijpbs.2019.10.2.b138-143.