izlaidumi no Guttila Yugantha Jayasinghe

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Cover for Guttila Yugantha Jayasinghe · Green Productivity and Cleaner Production: A Guidebook for Sustainability (Paperback Book) (2022)

Green Productivity and Cleaner P... (2022)

Guttila Yugantha Jayasinghe

Cover for Guttila Yugantha Jayasinghe · Green Productivity and Cleaner Production: A Guidebook for Sustainability (Hardcover Book) (2020)

Green Productivity and Cleaner P... (2020)

Guttila Yugantha Jayasinghe

Cover for Guttila Yugantha Jayasinghe · Text Book on Compost Production and Utilization (Paperback Book) (2013)

Text Book on Compost Production ... (2013)

Guttila Yugantha Jayasinghe