1. Relationship of texture to some important soil moisture constants;Abrol;Geoderma,1968
2. Procedure for Testing Soils; Tentative Method of Test for Liquid Limit of Soils;ASTM,1964
3. Particle size analysis by hydrometer method and its use in estimating the lower limit of available water;Babalola;Niger. Agric. J.,1972
4. Sub-soil gravel horizon and maize root growth, 1. Gravel concentration and bulk density effects;Babalola;Plant Soil,1977
5. Relation and availability of soil water as influenced by soil organic carbon;Biswas;Indian J. Agric. Sci.,1969