Control Ecological Model for the Survival of Biological Species which are Directly Affected by Pollutants Emitted from External Sources: A Qualitative Approach. J. Int. Acad. Phys. Sci. [Internet]. 2015 Jun. 15 [cited 2026 Oct. 23];19(2):81-101. Available from: http://www.iaps.org.in/journal/index.php/journaliaps/article/view/346