7Diagne, A.; M. Zeller and M. Sharma: Empirical Measurements of Households'Access to Credit and Credit Constraints in Developing Countries: Methodological Issues and Evidence, Food Consumption and Nutrition Division Discussion Paper 90, International Food Policy Research Institute, Washington D.C., 2000.
8Petrick, Martin: Empirical Measurement of Credit Rationing in Agriculture: a Methodological Survey, Agricultural Economics, 33, 2005: 91-203.
