Aryanti, Aryanti, et al. “Aktivitas Antioksidan Produk Kopi Dan Teh Di Kota Samarinda: Antioxidant Activity of Coffee and Tea Products in Samarinda City”. Jurnal Sains Dan Kesehatan, vol. 3, no. 3, June 2021, pp. 488-91, doi:10.25026/jsk.v3i3.510.