Singh Balraj. (2005). Entrepreneurship Development (2nd.). Wisdom Publishers.
Dyfyniad Arddull ChicagoSingh Balraj. Entrepreneurship Development. 2nd. Delhi: Wisdom Publishers, 2005.
Dyfyniad MLASingh Balraj. Entrepreneurship Development. 2nd. Wisdom Publishers, 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.