https://www.researchprojecttopics.com/2018/11/07/cost-entropy-expert-system-approach-modelling-cost-smoothing-system-reinforced-concrete-office-building-projects-procurementjournal-civil-environmental-research/
COST ENTROPY AND EXPERT SYSTEM APPROACH TO MODELLING COST SMOOTHING SYSTEM IN REINFORCED CONCRETE OFFICE BUILDING PROJECTS PROCUREMENT,JOURNAL OF CIVIL AND ENVIRONMENTAL RESEARCH