Rahmawati, L. ., Dahar, E. ., & Angelia, V. . (2023). Effect of Immersion Duration in Coffee Beverage on Colour Stability of Polymethyl Methacrylate Denture Base Reinforced with 1% Chitosan Nanogel (Laboratory Study). Dentika: Dental Journal, 26(2), 90-96. https://doi.org/10.32734/dentika.v26i2.11719