Rujukan Hakisan_menghulu

  1. ↑ Essentials of Geology, 3rd Ed, Stephen Marshak
  2. ↑ "hakisan menghulu". Istilah Bahasa Melayu. Dewan Bahasa dan Pustaka. Dicapai pada 10 April 2023 – melalui Pusat Rujukan Persuratan Melayu.
  3. ↑ Judson, Sheldon; Kauffman, M.E. (1990). Physical geology (ed. 8th). Englewood Cliffs, N.J.: Prentice Hall. m/s. 288–289. ISBN 0-13-666405-9.
  4. ↑ Easterbrook, Don J. (1999). Surface processes and landforms (ed. 2nd). Upper Saddle River, N.J.: Prentice Hall. m/s. 147–152. ISBN 0-13-860958-6.