Pasaribu, Gunawan Trisandi, et al. “THE EFFECTIVENESS OF GLUCOMANNAN AND NANO ACTIVATED-CARBON AS HYPERCHOLESTEROL-LOWERING AGENTS”. Indonesian Journal of Forestry Research, vol. 7, no. 2, Oct. 2020, pp. 155-64, doi:10.59465/ijfr.2020.7.2.155-164.