belajar pertanian organik

TEROBOSAN TEKNOLOGI PEMUPUKAN DALAM ERA PERTANIAN ORGANIK, Budi Daya Tanaman Pangan, Hortikultura dan Perkebunan By: Published on by Kanisius This Book was ranked 5 by Google Books for keyword pertanian organik, sayur organik ,kebun organik.

Sistem pertanian berkelanjutan By:"Karwan A. Salikin" Published on 2003 by Kanisius This Book was ranked 14 by Google Books for keyword pupuk organik,pestisida organik,.