Khaykal, M. F., and S. H. V. Pulukadang. “Determination of Iron (Fe), Zinc (Zn) Levels and Organoleptic Tests in Coconut Pulp Flour”. Jurnal Akademika Kimia, vol. 10, no. 4, Nov. 2021, pp. 269-76, doi:10.22487/j24775185.2021.v10.i4.pp269-276.