Ahuja, R. (2002). Research Methods. Rawat.
Tohutoru Kātū Chicago (17th ed.)Ahuja, Ram. Research Methods. New Delhi: Rawat, 2002.
Tohutoro MLA (9th ed.)Ahuja, Ram. Research Methods. Rawat, 2002.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.