00386nam a22001457a 4500003000400000005001700004008004100021020001100062040002500073100002000098245006300118250001200181260003600193300001100229OSt20260312134756.0260312b        |||||||| |||| 00| 0 eng d  a(cb.)   cNVSU Library Bambang  aRiggs, James L.  aEssentials of Engineering Economics vol.1 cJames L. Riggs  a2nd ed.  bMcGraw - Hill Co., Inc.,c1986.  a572 p.