Satti، Y. H. (2019). Comparing Data Results of Locally Manufactured Proctor Apparatus with Standard One Obtained from the Northern State, Sudan. مجلة جامعة دنقلا للبحوث العلمية، مج9, ع16 ، 292 - 300. مسترجع من http://search.mandumah.com/Record/1200817
Satti، Yasir Hassan. "Comparing Data Results of Locally Manufactured Proctor Apparatus With Standard One Obtained From the Northern State, Sudan." مجلة جامعة دنقلا للبحوث العلمية مج9, ع16 (2019): 292 - 300. مسترجع من http://search.mandumah.com/Record/1200817