| 1 |
Principles of transportation economics / Kenneth D. Boyer
Reading, Mass. : Addison-Wesley , c1998
|
| 2 |
International economics : theory and policy / Paul R. Krugman, Maurice Obstfeld
: hbk. - 7th ed. - Boston : Pearson, Addison-Wesley , c2006
|
| 3 |
Introduction to econometrics / James H. Stock, Mark W. Watson
: pbk. - 3rd ed., global ed. - Harlow, England : Pearson Education , c2012
|
