Budiono, H.D.S. and Hadiwardoyo, F.A. 2021. Development of product complexity index in 3D models using a hybrid feature recognition method with rule-based and graph-based methods . Eastern-European Journal of Enterprise Technologies. 3, 1 (111) (Jun. 2021), 47–61. DOI:https://doi.org/10.15587/1729-4061.2021.227848.