Retno Murwani. (2008). Aditif pakan/ Retno Murwani. Semarang :: Unnes Press,.
Retno Murwani. Aditif pakan/ Retno Murwani. Semarang :: Unnes Press,, 2008
Retno Murwani. Aditif pakan/ Retno Murwani. Semarang :: Unnes Press,, 2008.