1. Scheduling theory. Department of Combinatorics and Optimization;Butterworth,1979
2. Scheduling Theory: Complexity and Optimal Algorithms;Coffman,1975
3. Modeling works execution times using fuzzy logic (Modelowanie czasów wykonania robót budowlanych z wykorzystaniem wnioskowania rozmytego);Ibadov;Logistyka,2010
4. N. Ibadov, J. Kulejewski, M. Krzemiński Fuzzy ordering of the factors affecting the implementation of construction projects in Poland AIP Conference Proceedings 1558, edited by T. Simos et al., American Institute of Physics, Melville, NY, 2002, pp. 1298-1301.
5. The issue of time and cost in project management: planning and control methods (Zagadnienie czasu i kosztów w zarządzaniu projektami : wybrane metody planowania i kontroli);Kuchta,2011