Number 20

Authors: Rajesh Gargi , Yogesh Chaba , R. B. Patel

Authors: Jeby K Luthiya , C. Umamaheswari

Authors: Jignasha B Panchal , Krupali R Shah , Nidhi J Sanghani , Rutvij H Jhaveri

Authors: Nahid Rahman , B. P. Singh

Authors: Navjot Singh , Rupinder Kaur Cheema

Authors: P. Srinivasarao , P. Subbaiah

Authors: S. L. Prathapa Reddy , M. V. Subramanyam , K. Satyaprasad

Authors: Esther Rani. T , Rameshwar Rao