AUTHOR
- Philippines. Department of Agriculture. Bureau of Soils 2 canlyniadau
- Alcantara, Antonio J. 1 canlyniadau
- Asia-Pacific Agricultural Policy Forum Republic of South Korea 1 canlyniadau
- Bouis, Howarth E. 1 canlyniadau
- Boyce, James K. 1 canlyniadau
- Cruz, Ma. Concepcion J. 1 canlyniadau
- Evenson, Robert E. 1934- 1 canlyniadau
- Kennedy, Eileen T. 1947- 1 canlyniadau
- Marten, Gerald G. 1939- 1 canlyniadau
- Mya Than 1 canlyniadau
- Philippines. Bureau of Agricultural Economics 1 canlyniadau
- Philippines. Division of Agricultural Economics 1 canlyniadau
- Salinas Florence T. 1 canlyniadau
- Sharma, Shiva Prasad 1 canlyniadau
- White, H.P 1 canlyniadau