Elsie, .-.; Riyana, R.; Harahap, I. ISOLATION OF Actinomycetes FROM MANGROVE SOIL IN THE VILLAGE OF SUNGAI RAWA, SUNGAI APIT SUB-DISTRICT, SIAK REGENCY, RIAU PROVINCE AND ANTIMICROBIAL TEST AGAINST Escherichia Coli AND Staphylococcus Aureus. STK 2019, 1, 84-91.