The statistical analysis of the sand grain size distribution of Al Ubaylah barchan dunes, Northwestern Ar-Rub-Alkhali desert, Saudi Arabia in Saudi Arabia. (L'Arabie Saoudite)
This paper aims to explore methods for identifying the determinants of population age structure variations in the absence of adequate vital statistics by using the census data at district level. The area study is Uttar Pradesh. - (PLK)
, degree of industrialisation and population distribution. The present study is based on the statistical formula for calculating the value of the potential. - (PLK)