Poetry Oktanauli, Zikir, A. P., Pinka Taher, Margaretha Herawati, & Martin Sean. (2023). Effect of Robusta Coffee (Coffea Canephora) on the Degree of Acidity (pH) of Saliva. International Journal of Clinical Science and Medical Research, 3(5), 97–101. https://doi.org/10.55677/IJCSMR/V3I5-02/2023