APA-viite (7. p.)

KOTHARI C R. (1987). RESEARCH METHODOLOGY: METHODS AND TECHNIQUES (2.). WILEY EASTERN LTD.

Chicago-viite (17. p.)

KOTHARI C R. RESEARCH METHODOLOGY: METHODS AND TECHNIQUES. 2. NEW DELHI: WILEY EASTERN LTD, 1987.

MLA-viite (9. p.)

KOTHARI C R. RESEARCH METHODOLOGY: METHODS AND TECHNIQUES. 2. WILEY EASTERN LTD, 1987.