na INLIS000000000001031 20260421031209 0010-1120000053 Economic theory and operations analysis Boumol, William J. 4th.ed London : Prentice-Hall, 1977 xxi, 695 p. : ill. ; 22 cm 0-13-227108-7 330 BOU e 330 EKONOMI TEORI. 260421 g 0 eng 2962/PSEKP/2026