This tutorial is detailed explanation of Measure of Dispersion like Range, Interquartile Deviation, Quartile Deviation, Mean Deviation with their excel commands. Measures of dispersion is used for analysis of variation in data. It is the important part of descriptive statistics.
Any and Every Indian's Guide to The Chinese Economic Miracle by Siba Prasad Dasgupta
Organic Food Marketing in Urban Centres of India by Nina Osswald
Ideas in People Management by Shubhadha Iyer
Principles of Marketing by Kunal Gaurav