1. Gram HE. Durability of natural fibres in concrete, Fo 1.83 (Res. Report No: 1 of 1983), Swedish Cement and Concrete Research Institute, Stockholm, 255 pp
2. John VM, Agopyan V. Durability of blast furnace-slag based cement mortar reinforced with coir fibres. In: Sobral HS, editor. Second Int. Symp. on Vegetable Plants and Their Fibres as Building Materials, Sep. 17–21. London: Chapman & Hall, 1990, p. 87–97
3. Canovas MF, Kawiche GM, Selva NH. Possible ways of preventing deterioration of vegetable fibres in cement mortars. In: Sobral HS, editor. Second Int. Symp.on Vegetable Plants and Their Fibres as Building Materials, Sep. 17–21. London: Chapman & Hall 1990, p. 120–9
4. New economical solutions for improvement of durability of portland cement mortars reinforced with sisal fibres;Canovas;Mater. Struct.,1995
5. Durability of alkali-sensitive sisal and coconut fibres in cement mortar composites;Toledo Filho;Cement Concr. Compos.,2000