1. American Concrete Institute Standard ACI 531–79. (1979). “Building Code Requirement for Concrete Masonry Structures.” Detroit MI.
2. American Society of Testing and Materials. (May 1978). “Compressive Strength of Masonry Assemblages ” E 447‐74 Philadelphia PA May 1978.
3. Atkinson R. H. and Kingsley R. G. (Sept. 1985). “Comparison of the Behavior of Clay and Concrete Masonry Prisms in Compression.” Technical Report Atkinson‐Noland & Assoc. Boulder CO.
4. Becica I. J. “Behavior of Hollow Concrete Masonry Prisms under Axial and Bending Loads and its Implications on Ultimate Strength Design of Masonry Structures.” Thesis presented to Drexel Univ. at Philadelphia PA in 1980 in partial fulfillment of the requirements for the degree of Master of Science.