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		Yuda, Ade Purba, 		Tika, I Wayan, AND 		Aviantara, I G. N.Apriadi.
" Studi Kasus Tentang Pengolahan Tanah Dengan Bajak Singkal Dan Rotary Terhadap Sifat Fisik Tanah Pada Budidaya Tanaman Padi Sawah" <em>Jurnal BETA (Biosistem dan Teknik Pertanian)</em> [Online], Volume 5 Number 1 (19 January 2017)