J. mamangkey, Lucas William Mendes, Mada Triandala Sibero, and Pilidai Endorina Nadapdap, “Bioprospecting For Bacterial Endophytes Associated With Zingiberaceae Family Rhizomes In Sibolangit Forest, North Sumatera”, IJSTM, vol. 1, no. 1, pp. 27–36, May 2020.