Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Dr. shalini #polityachiever Sharma
chapter 6 https://en.m.wikipedia.org/wiki/Chapter_VI_of_the_United_Nations_Charter