បណ្តុំទិន្នន័យ អំពី Activity Stream Order by Relevance Name Ascending Name Descending Last Modified ទៅ 1 dataset found ប្រភេទកសិវិទ្យា: ការកាត់បន្ថយធាតុចូល និងការកែច្នៃឡើងវិញ ពាក្យគន្លឹះកសិអេកូឡូស៊ី: កសិកម្មអចិន្រ្តៃ ភាសា: English Filter Results Lessons from Nature - A guide to Ecological Agriculture in the tropics Over millions of years, nature has built up an intricate system of relationship of exchange and mutual dependence among its elements - land, water, air, forest, sunlight and... PDF
