Ali, N.; Özcan, E.; Yücel, A. O.; Hanif, M.; Hashmi, S. I.; Ullah, F.; Rizwan, M.; Pignatti, J. (2018). Bartonian orthophragminids with new endemic species from the Pirkoh and Drazinda formations in the Sulaiman Range, Indus Basin, Pakistan. Geodinamica Acta. 30(1): 31-62.