PutriE., RukayadiY., SunartiT. C., and MeryandiniA., “Increase in Polyphenolic Substances from Fermented Robusta Coffee Pulp (Coffea canephora L.) by Using Indigenous Actinomycetes”, HAYATI J Biosci, vol. 30, no. 3, pp. 457-465, Jan. 2023.