Duwatsu

Duwatsu dai ana samun su a wasu jahohin Najeriya, kaman kano, katsina, jigawa, zamfara da sauran su.

Manazarta
Haldar, S. K. (2013). "Introduction". Introduction to Mineralogy and Petrology. Elsevier Science. pp. 1–37. ISBN 9780124167100.
O'Hara, Kieran D. (2018). "The Structure of Geological Revolutions". A Brief History of Geology (1 ed.). Cambridge University Press. pp. 247–259.