Piper nigrum Leaf and Stem Assisted Green Synthesis of Silver Nanoparticles and Evaluation of Its Antibacterial Activity Against Agricultural Plant Pathogens oleh Kanniah Paulkumar, Gnanadhas Gnanajobitha, Mahendran Vanaja, Shanmugam Rajeshkumar, Chelladurai Malarkodi, Kannaiyan Pandian, Gurusamy Annadurai