selection and evaluation of cassava varieties in chamkarleu district, kampong cham province(ការជ្រើសរើស និងវាយតំលៃលើពូជដំណាំដំឡូងមីក្នុងលក្ខខណ្ឌស្រុកចំការលើ ខេត្តកំពង់ចាម) CHAV, PHALIT. AGR CHA 2009 B042 Or.1 Phnom Penh RUA 2009 2009 Text xii, 54p. https://drive.google.com/file/d/1p2LF7PH9bgP2lLagieyg5dfMWUE_jP4f/view?usp=sharing