المراجع ↑ David Christian Berle, Bob Westerfield (), "Stocking the Toolshed: Hand Tools"،, Retrieved ^ أ ب Dr. Joy Kenneth Sala Biasong (), "K to 12 Crop Production Learning Modules"،, Retrieved ^ أ ب Edwin J. Jones, Jewel E. Hairston (2014), Hand Tools Safety: Lawn Care Training Guide ...
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