M. Sultan-Ul-Islam, M. Shamsuzzaman, and M. B. Islam, “Geotechnical Study of Sub-Surface Sediments in Sirajgonj Town and its Adjoining Areas, Bangladesh: Geotechnical Study of Sirajgonj, Bangladesh”, Pakistan Journal of Scientific & Industrial Research, vol. 51, no. 1, pp. 1–10, Feb. 2008.