C.Radhakrishnan. (1993). Economics of pepper production in India. University of Kerala.
Dyfyniad Arddull ChicagoC.Radhakrishnan. Economics of Pepper Production in India. Trivandrum: University of Kerala, 1993.
Dyfyniad MLAC.Radhakrishnan. Economics of Pepper Production in India. University of Kerala, 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.