Study in sacco degradability of vigana radiata arachis hypogaea and ipomoea batatas by -product on cattle (ការសិក្សាអំពីកំរិតរលាយរបស់អនុផលដើមសណ្ដែកបាយដើមសណ្ដែកដីនិងទងដំឡូងជ្វាដោយប្រើវិធីសាស្រ្តថង់នីឡុងលើគោ) YOEUNG, SOPHALLY. AVM YOE 2009 B089 Or.1 Phnom Penh RUA 2009 2009 Text ix, 40p. https://drive.google.com/file/d/1m6kyRklSW-OU7Zrj9PddX7VxYp7bdSoK/view?usp=sharing