R. F., Ginarwansyah, 		Dewi, G. A. M. K., AND 		Wiraparta, M..
" THE EFFECT OF OYSTER SHELL IN COMMERCIAL RATIONS ON PERCENTAGE OF EXTERNAL OFFAL OF ISA BROWN CHICKEN  104 WEEKS" <em>Jurnal Peternakan Tropika</em> [Online], Volume 11 Number 2 (8 May 2023)