1. Toba ash on the Indian subcontinent and its implication of late pleistocene alluvium;Acharyya;Quat. Res.,1993
2. An Introduction to Optical Dating;Aitken,1998
3. Late Pleistocene human population bottlenecks, volcanic winter, and differentiation of modern humans;Ambrose;J. Hum. Evol.,1998
4. Did the super-eruption of Toba cause a human population bottleneck?;Ambrose;Reply to Gathorne-Hardy and Harcourt-Smith Jour Human Evol,2003
5. Volcanic ash in the quaternary formations, Sagileru valley. News geol soc India;Anonymous;South. Regist.,1991