sedrac, k. a., & hamid, s. (1965). fortran subroutine for simpson's method of numerical integration. the institute of national planning.
Chicago-referens (17:e uppl.)sedrac, khairy a., och s. hamid. Fortran Subroutine for Simpson's Method of Numerical Integration. cairo: the institute of national planning, 1965.
MLA-referens (9:e uppl.)sedrac, khairy a., och s. hamid. Fortran Subroutine for Simpson's Method of Numerical Integration. the institute of national planning, 1965.