Dr. Mehrdad Alemi and Hossein Jalalifartrans. 2023. Compositional Grading and Reservoir Oil Composition Variation with Depth Experiment by PVTi Software with Lab Data. Indian Journal of Petroleum Engineering (IJPE). 3, 2 (Dec. 2023), 6–11. DOI:https://doi.org/10.54105/ijpe.B1916.113223.