Patiung, N. ., D. K. . Walanda, and S. . Aminah. “Determination of Vitamin C and Metal Copper (Cu) Levels in Katokkon Chili (Capsicum Chinense Jacq) Based on Maturity Level”. Jurnal Akademika Kimia, vol. 10, no. 3, Aug. 2021, pp. 182-7, doi:10.22487/j24775185.2021.v10.i3.pp182-187.