Comparision of lage scale clone trial at rubber research institute of cambodia ការប្រៀបធៀបក្លូនកៅស៊ូនៅវិទ្យាស្ថានស្រាវជ្រាវកៅស៊ូនៅកម្ពុជា POL, SOKEA. AGR POL 2009 B040 Or.1 Phnom Penh RUA 2009 2009 Text x; 65p. https://drive.google.com/file/d/170NlpZ-_9m3NZ49eiCngJZnHlgYVpv9J/view?usp=sharing