Hambly, K. (1989). How to improve your confidence. Sudha.
Dyfyniad Arddull ChicagoHambly, Kenneth. How to Improve Your Confidence. New Delhi: Sudha, 1989.
Dyfyniad MLAHambly, Kenneth. How to Improve Your Confidence. Sudha, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.