P.  A. Kumar, Pandey, J. K., Kumar, B., and Singh, R. P., ?Photo-bio-degradability of agro waste and ethylene-propylene copolymers composites under abiotic and biotic environments?, Journal of Polymers and the Environment, vol. 14, no. 2, pp. 203-212, 2006.

S. A. S.  Alariqi, A. Kumar, P., Rao, B. S. M., Tevtia, A. K., and Singh, R. P., ?Stabilization of gamma-sterilized biomedical polyolefins by synergistic mixtures of oligomeric stabilizers?, Polymer Degradation and Stability, vol. 91, no. 10, pp. 2451-2464, 2006.

S. P.  Lonkar, A. Kumar, P., and Singh, R. Pal, ?Photo-stabilization of EPDM-clay nanocomposites: effect of antioxidant on the preparation and durability?, Polymers for Advanced Technologies, vol. 18, no. 11, pp. 891-900, 2007.

S. A. S.  Alariqi, A. Kumar, P., Rao, B. S. M., and Singh, R. P., ?Stabilization of gamma-sterilized biomedical polyolefins by synergistic mixtures of oligomeric stabilizers. part II. polypropylene matrix?, Polymer Degradation and Stability, vol. 92, no. 2, pp. 299-309, 2007.

S. A. S.  Alariqi, A. Kumar, P., Rao, B. S. M., and Singh, R. P., ?Effect of gamma-dose rate on crystallinity and morphological changes of gamma-sterilized biomedical polypropylene?, Polymer Degradation and Stability, vol. 94, no. 2, pp. 272-277, 2009.

S.  Deka, Joy, P. Alias, and A. Kumar, P., ?Single step synthesis and properties of M/MFe2O4 and PVDF/M/MFe2O4 (M = Co, Ni) magnetic nanocomposites?, Science of Advanced Materials, vol. 1, no. 3, pp. 262-268, 2009.