Siburian, R.
(2012).
 PENGARUH KONSENTRASI DAN WAKTU INKUBASI EM4 TERHADAP KUALITAS KIMIA KOMPOS.
<em>Bumi Lestari, 8</em>(1).
Retrieved from <a href="http://103.29.196.112/index.php/blje/article/view/2441" target="_new">http://103.29.196.112/index.php/blje/article/view/2441</a>