Mandal , Manimohan . Some inventory and production problems in crisp and fuzzy environment / researched by Manimohan Mandal; guided by Manoranjan Maiti. - Midnapore : Vidyasagar University , 2000. - 210p. : ills.,figs.,tables ; 28cm Document represents Ph.D Thesis Subjects--Index Terms: INVENTORY CONTROL PROBABILITIES Dewey Class. No.: 519.83 / MAN/S