Cruz, J. J. (1980). PERT/CPM program evaluation review technique/critical path method. Philippine Engineering Journal.
Chicago-viite (17. p.)Cruz, Jose J. "PERT/CPM Program Evaluation Review Technique/critical Path Method." Philippine Engineering Journal 1980.
MLA-viite (9. p.)Cruz, Jose J. "PERT/CPM Program Evaluation Review Technique/critical Path Method." Philippine Engineering Journal, 1980.
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