Fitrah, Q. and Fahrullah, F. 2024. Analysis of Thickness, WVTR, and Microstructure of Whey-Gelatin Protein Based Film with Variation in Chia Seed (Salvia hispanica L.) Concentration. Jurnal Biologi Tropis. 24, 2 (Jun. 2024), 639–647. DOI:https://doi.org/10.29303/jbt.v24i2.6919.