Al-Fitouri ARY, Al-Mabrouk AHH, Al-Ali ABMH. Study of the effect of primary density and breeding periods on Intraspecific competition between species of the saw–toothed grain beetle Oryzaephilus surinamensis L (Coleoptera: Cucujidae). mjsc. 2018;33(1):72-77. doi:10.54172/mjsc.v33i1.32