F. A. Adekola, N. Salami and K. A. Lawai, “Assesment of the Bioaccumulation Capacity of Scots Pine (PinusSylvestris L) Neddles for Zinc, Cadmium and Sulphur in Ilorin and Ibadan Cities (Nigeria),” Nigerian Journal of Pure and Applied Science, Vol. 17, 2002, pp. 1297-1301.
 F. A. Adekola, N. Salami and S. O. Lawai, “Some Trace Elements Determination in Surface Water and Sediments of Oyunriver, Kwara State, Nigeria,” Nigerian Journal of Pure and Applied Science, Vol. 18, No. 3, 2003, pp. 14181422.
 A. Yudhistra Kumar and M. Vikram Reddy, “Effects of Municipal Sewage on the Growth Performance of CasuarinaEquisetifolia (Forst. & Forst.) On Sandy Soil of East Coast at Kalpakkam (Tamil Nadu, India),” Applied Ecology and Environmental Research, Vol. 8, No. 1, 2010, pp. 77-85.
 I. K. Kalavrouziotis and P. Koukoulakis,” Elemental Antagonism in Vegetables under Treated Municipal Wastewater,” Journal of Plant Interactions, Vol. 5, No. 2, 2010, pp. 101-109. doi:10.1080/17429140903438092
 P. K. Goel and S. M. Kulkarni, “Effects of Sugar Factory Waste on Germination of Gram Seed (Ciceraeritinum L.),” International Journal of Environment and Pollution, Vol. 1, No. 1, 1994, pp. 35-53.
 S. Rana, S. K. Bag, D. Golder, S. Mukherjee (Roy), C. Pradhan and B. B. Jana, “Reclamation of Municipal Domestic Waste Water by Aquaponics of Tomato Plants,” Ecological Engineering, Vol. 3, No. 2, 2011, pp. 175178.
 A. Fatma EL-Gohary, A. Fayza Nasr and S. EL-Hawaary, “Performance Assessment of a Wastewater Treatment Plant Producing Effluent for Irrigation in Egypt,” The Environmentalist, Vol. 18, No. 2, 1998, pp. 87-93. doi:10.1023/A:1006618307270
 M. S. Omran, T. M. Waly, E. M. A. Elnaim and B. M. B. El Nashar, “Effect of Sewage Irrigation on Yield, Tree Components and Heavy Metals Accumulation in Navel Orange Trees,” Biological Waste, Vol. 23, No. 1, 1988, pp. 17-24. doi:10.1016/0269-7483(88)90041-9
 Singh, A. Bhati, R. K. Sharma, M. Agrawal and F. Marshall, “Effects of Wastewater Irrigation on Physicochemical Properties of Soil and Availability of Heavy Metals in Soil and Vegetables,” Communications in Soil Science and Plant Analysis, Vol. 40, No. 21-22, 2004, pp. 3469-3490. doi:10.1080/00103620903327543
 S. Ramana, A. K. Biswas, S. Kundu, J. K. Saha and B. R. Yadava, “Effect of Distillery Effluent on Seed Germination in Some Vegetable Crops,” Bioresource Technology, Vol. 82, No. 3, 2001, pp. 273-275. doi:10.1016/S0960-8524(01)00184-5
 M. Kuntal, M. Hati, K. Biswas Ashish, K. Bandyapadhyaya and K. Misra, “Effect of Post-Methanation Effluent on Soil Physical Properties under Soyabean-Wheat System in a Vertisol,” Journal of Plant Nutrition and Soil Science, Vol. 167, No. 5, 2004, pp. 584-590. doi:10.1002/jpln.200321284
 K. P. Raverkar, S. Ramana, A. B. Singh, A. K. Biswas and S. Kundu, “Impact of Post Methanated Spentwash (PMS) on the Nursery Rising, Biological Parameters of Glyricidia sepum and Biological Activity of Soil,” Annual Review of Plant Research, Vol. 2, No. 2, 2000, pp. 161-168.