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2. Specification for Soil Based Blocks Used in General Building Construction;BIS IS 1725,1982
3. Standards Australia and Walker P. HB 195. The Australian earth building handbook. Sydney, Australia: Standards Australia; 2002. p. 151.
4. Blocs de Terre Comprimée Ordinaires – Spécifications Techniques;NT 21.33(1996),1998
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