1. 1. M. Ibrahim, N. K. Ali, (2013) “Flexural Capacities of Two-way Reinforced Concrete Bubble Deck slabs of Plastic Spherical Voids”, Diyala journals of Engineering Sciences, Vol. 06, No. 02, pp. 9 – 20.
   2. AS 3600-2001, published by Standards of Australia.
   3. B.K. Bakht, L.G. Jaeger, M.S. Cheung and A.A. Mufti, (1981) "The State of the art in Analysis of Cellular and Voided Slab Bridge" Can. J. Civ. Eng., Vol. 8, pp. 376- 391.
   4. Bubble Deck Design Guide; the Biaxial Hollow Deck. Unpublished manuscript (2010).
   5. Bubble Deck’s U.S. Debut. Kirkland, WA: Bubble Deck North America. (2012).
   6. Bubble Deck UK Head Office, Bubble Deck Voided Flat Slab Solution, Technical Manual and Documents, (2006).
   7. Tina Lai ”Structural behaviour of bubble deck slab and their applications to lightweight bridge decks” ,M.Tech thesis, MIT, 2009 8. Bhagyashri G. Bhade and S.M Barelikar.2016, AN Experimental Study on Two Way Bubble Deck SLAB With Spherical Hollow Balls. Int J Recent Sci Res. 7(6), pp. 11621-11626.
   
   
2. 1. M. Ibrahim, N. K. Ali, (2013) “Flexural Capacities of Two-way Reinforced Concrete Bubble Deck slabs of Plastic Spherical Voids”, Diyala journals of Engineering Sciences, Vol. 06, No. 02, pp. 9 – 20.
   2.  AS 3600-2001, published by Standards of Australia.
   3. B.K. Bakht, L.G. Jaeger, M.S. Cheung and A.A. Mufti, (1981) "The State of the art in Analysis of Cellular and Voided Slab Bridge" Can. J. Civ. Eng., Vol. 8, pp. 376- 391.
   4. Bubble Deck Design Guide; the Biaxial Hollow Deck. Unpublished manuscript (2010).
   5. Bubble Deck’s U.S. Debut. Kirkland, WA: Bubble Deck North America. (2012).