The publication entitled Registered Organic Soil Amendment (OSA) and Organic Biological Control Agents (OBCA) Product Catalogue is published annually by the Bureau of Agriculture and Fisheries Standards.
REGISTERED ORGANIC SOIL AMENDMENTS (OSA) AND ORGANIC BIOLOGICAL CONTROL AGENTS (OBCA)
Content Contributor: Jay El E. Bautista, Jenina B. Cusay, John Lawrence A. Arrogante
Design: Vicente D. Limsan, Jr.
Editor: Vicente D. Limsan, Jr., Moraine M. Sumague, Marc Owell A. Ama