5 1 10 Rildiwan Additional Author Yuni Ernita Primary Author mixed material Payakumbuh Politeknik Pertanian Negeri Payakumbuh 2016 Rildiwan Additional Author Musdar Effy Djinis Additional Author muhammad riza nurtam Additional Author Indra Laksmana Additional Author fithra herdian Primary Author rodestri mulydi Additional Author mixed material Payakumbuh Politeknik Pertanian Negeri Payakumbuh 2015 Yudistira Additional Author Rildiwan Primary Author Amrizal Primary Author Musdar Effy Djinis Additional Author Irzal Additional Author fithra herdian Primary Author mixed material Payakumbuh Politeknik Pertanian Negeri Payakumbuh 2018 Rildiwan Additional Author Elvin Hasman Additional Author Jamaluddin Primary Author perdana putera Additional Author irwan a Additional Author muhammad riza nurtam Additional Author mixed material Payakumbuh Politeknik Pertanian Negeri Payakumbuh 2018 Fithra Herdian, STP, MP Primary Author Ir. lrzal, MP Primary Author Ir. Yudistira, M.Si Primary Author Ir. Musdar Effy Djinis, MP Primary Author Ir. Rildiwan, MP Primary Author Amrizal, S.Kom, M~Kom Primary Author mixed material Payakumbuh Politeknik Pertanian Negeri Payakumbuh 2017