Discrepancies in census and socio-economic status of ethnic communities / Philip Gain, Shishir Moral and Snigdha Emelda Tigga. Gain, Philip Moral, Shishir. Tigga, Snigdha Emelda. Thought and thinking. Thought and thinking Problems, exercises, etc. Interest (Psychology) BF441 .D3833 2000 954.92305 GAD Dhaka : Society for Environment and Human Development(SEHD). 1999. 1999. 1999 Text v, 70 p. : eng