Padmavathi, Vedula, Gulbarga university
Paikray, S.K.
Pandey, C. P., AJAY KUMAR GARG ENGINEERING COLLEGE
Panfarosh, U. A., Anjuman Arts, Science and Commerce college, Bijapur
Prabha, A. Bhargavi Siva, Department of Mathematics JNTU-Kakinada Andhra Pradesh