Chandra Prakash, V, J K. R. Sastry, K. Anusha, P Ashok Kumar, N. Venkatesh, and G. Ravi Teja. 2018. “Expert System for Building Cognitive Model of a Student Using 8-Puzzle Game and for Career Assessment”. International Journal of Engineering & Technology 7 (2.27): 113-17. https://doi.org/10.14419/ijet.v7i2.27.12014.