S. SABBAGH,M. (1996). A GENERAL LEXICOGRAPHIC PARTIAL ENUMERATION ALGORITHM FOR THE SOLUTION OF INTEGER NONLINEAR PROGRAMMING PROBLEMS WITH DISCRETE ISOTONE NONDECREASING OBJECTIVE FUNCTION AND CONSTRAINTS. Amirkabir Journal of Science and Research, 18(2), 329-334.

S. SABBAGH,M. . "A GENERAL LEXICOGRAPHIC PARTIAL ENUMERATION ALGORITHM FOR THE SOLUTION OF INTEGER NONLINEAR PROGRAMMING PROBLEMS WITH DISCRETE ISOTONE NONDECREASING OBJECTIVE FUNCTION AND CONSTRAINTS", Amirkabir Journal of Science and Research, 18, 2, 1996, 329-334.

S. SABBAGH M. (1996). 'A GENERAL LEXICOGRAPHIC PARTIAL ENUMERATION ALGORITHM FOR THE SOLUTION OF INTEGER NONLINEAR PROGRAMMING PROBLEMS WITH DISCRETE ISOTONE NONDECREASING OBJECTIVE FUNCTION AND CONSTRAINTS', Amirkabir Journal of Science and Research, 18(2), pp. 329-334.

M. S. SABBAGH, "A GENERAL LEXICOGRAPHIC PARTIAL ENUMERATION ALGORITHM FOR THE SOLUTION OF INTEGER NONLINEAR PROGRAMMING PROBLEMS WITH DISCRETE ISOTONE NONDECREASING OBJECTIVE FUNCTION AND CONSTRAINTS," Amirkabir Journal of Science and Research, 18 2 (1996): 329-334,

S. SABBAGH M. A GENERAL LEXICOGRAPHIC PARTIAL ENUMERATION ALGORITHM FOR THE SOLUTION OF INTEGER NONLINEAR PROGRAMMING PROBLEMS WITH DISCRETE ISOTONE NONDECREASING OBJECTIVE FUNCTION AND CONSTRAINTS. AJSR, 1996; 18(2): 329-334.