Singh, P. (1996). Towards quality questions. New Age.
Dyfyniad Arddull ChicagoSingh, Pritam. Towards Quality Questions. New Delhi: New Age, 1996.
Dyfyniad MLASingh, Pritam. Towards Quality Questions. New Age, 1996.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.