1. ASTM C637. Standard Specification for Aggregates for Radiation Shielding Concrete.
2. ASTM C638. Standard Descriptive Nomenclature of Constituents of Aggregates for Radiation Shielding Concrete.
3. Recommendation for Data on Shielding from Ionizing Radiation;British Standard: 4094 Part 1,1966
4. Engineering Compendium on Radiation Shielding;Jaeger,1975
5. Concrete Radiation Shielding;Kallan,1989