na 231213||||||||| | ||| |||| || || BHTDB2312201300110 20131223140549.957 79-489-418-4 012-231213011060 SBPKHAT [23] 636.51 636.51 SAM m Samosir Mengatasi permasalahan berternak ayam / Samosir Cet. 8 Jakarta : Penebar Swadaya, 2003 ix, 85 hlm. ; 2003 Ayam petelur Johanes sugito SBPKHAT