Somekh, B. Theory and methods in social research (2nd.). Sage Publication.
Dyfyniad Arddull ChicagoSomekh, Bridget. Theory and Methods in Social Research. 2nd. New Delhi: Sage Publication.
Dyfyniad MLASomekh, Bridget. Theory and Methods in Social Research. 2nd. Sage Publication.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.