ডঃ মুহম্মদ এশাল. (1960). Economy and organization of industrial: Enterprises. Pr.
Chicago Style (17th ed.) Zitazioaডঃ মুহম্মদ এশাল. Economy and Organization of Industrial: Enterprises. Sofia: Pr, 1960.
MLA (9th ed.) Zitazioaডঃ মুহম্মদ এশাল. Economy and Organization of Industrial: Enterprises. Pr, 1960.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.