Husniati, H., and D. Oktiani. “Chlorogenic Acid Isolation from Coffee As Affected by the Homogeneity of Cherry Maturity”. Pelita Perkebunan (a Coffee and Cocoa Research Journal), Vol. 35, no. 2, Aug. 2019, pp. 119-24, doi:10.22302/iccri.jur.pelitaperkebunan.v35i2.379.