Phạm, X. K. (2014). A proposed model to measure the ICT maturity of enterprise using aggregative group decision making under fuzzy environment: Doctoral Dissertation Major Information Management and E-Commerce - University of Electronic Science and Technology of China. University of Electronic Science and Technology of China.

Phạm, Xuân Kiên. A Proposed Model to Measure the ICT Maturity of Enterprise Using Aggregative Group Decision Making Under Fuzzy Environment: Doctoral Dissertation Major Information Management and E-Commerce - University of Electronic Science and Technology of China. University of Electronic Science and Technology of China, 2014.

Phạm, Xuân Kiên. A Proposed Model to Measure the ICT Maturity of Enterprise Using Aggregative Group Decision Making Under Fuzzy Environment: Doctoral Dissertation Major Information Management and E-Commerce - University of Electronic Science and Technology of China. University of Electronic Science and Technology of China, 2014.