N. B. Mohamed Haris, A. Hamzah, S. E. Krauss, and I. A. Ismail, “Relationship between Decision-Making Inputs and Productivity among Paddy Farmers in Integrated Agriculture Development Areas (IADAs), in Malaysia”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 3, no. 1, pp. 64–70, Feb. 2013.