APA-referens (7:e uppl.)

GUPTA, P. K. (2012). INTRODUCTION TO OPERATIONS RESEARCH (1ST ED.). S.CHAND&CO.

Chicago-referens (17:e uppl.)

GUPTA, PREM KUM. INTRODUCTION TO OPERATIONS RESEARCH. 1ST ED. NEW DELHI: S.CHAND&CO, 2012.

MLA-referens (9:e uppl.)

GUPTA, PREM KUM. INTRODUCTION TO OPERATIONS RESEARCH. 1ST ED. S.CHAND&CO, 2012.