Girsang, W. .; Girsang, R. .; Zamriyetti, Z.; Renizuida, R.; Hutagalung, Y. . The Effectiveness of Fluroxypyr Meptyl and Ammonium Glufosinate Herbicides in Controlling Weeds in The Field Oil Palm (Elaeis Quineensis Jacq.) . jppipa, pendidikan ipa, fisika, biologi, kimia 2023, 9, 4361-4367.