TY  - GEN
AU  - Subhash chander
TI  - Methods of construction of strata for estimating the area under high yielding varieties of rice in a region
KW  - Rice
KW  - High-yielding varieties
KW  - Methods
KW  - Construction
KW  - Design
KW  - Sample
KW  - Surveys
KW  - Technology
ER  -