N. Venugopal, M. Meenakshi Bai, M. V. Durga Prasad, T. V. Rama Mohan (1998) “PERT & CPM Approach to CE- Optimal Plans”, Journal of International Academy of Physical Sciences, 2(1-4), pp. 111–117. Available at: https://www.iaps.org.in/journal/index.php/journaliaps/article/view/710 (Accessed: 14 May 2024).