1. Adiyoga, W., R. Suherman, A. Asgar & Irfansyah, 1999. Potatoes in West Java: A rapid appraisal of production, marketing, processing, and consumer preferences. CIP, Lima, 39 pp.
2. Ahmad, K. & N. Hassan (Ed.), 1983. Nutrition survey of rural Bangladesh 1981–82. Institute of Nutrition and Food Science, University of Dhaka, Dhaka.
3. Bardan, R.S.K, T.S. Walker, V.S. Khatana, N.K. Saha, V.S. Verma, M.S. Kadian, A.J.Haverkort & W.T.Bowen, 1999. Intensification of potatoes in rice-based cropping systems: A rapid rural appraisal in West Bengal. Social Science Department Working Paper No.1999-1, CIP, Lima, 25 pp.
4. Bennett, M.K., 1936, 1941. Wheat studies of the food research institute. Vol.12 and 18. Stanford University, Stanford.
5. Biarnes, A., J.-P. Colin & M.J. Santiago de la Cruz, 1995. Agroeconomia de la papa en México. ORSTOM (Institut Francais de Recherche Scientifique pour le Développement en Coopération) and Colegio de Postgraduados, México D.F., 190 pp.