Tejada Tovar, C. N., Ángel Villabona Ortíz, and P. A. Ramírez Vásquez. “Waste Valorization of Starch Obtained from Hawthorn Yam As Bioadsorbent on Chromium (VI) and Nickel (II) Removal”. INGE CUC, vol. 16, no. 1, Jan. 2020, pp. 21-34, doi:10.17981/ingecuc.16.1.2020.02.