Arado

An arado amo an usa ka gamit pan-uma nga naguukab hin tuna para tamnan.

Pinanbasaran

Padugang nga barasahon 
 Brunt, Liam. "Mechanical Innovation in the Industrial Revolution: The Case of Plough Design". Economic History Review (2003) 56#3, pp. 444–477. .
 Hill, P. and Kucharski, K. "Early Medieval Ploughing at Whithorn and the Chronology of Plough Pebbles",  Transactions of the Dumfriesshire and Galloway Natural History and Antiquarian Society, Vol. LXV, 1990, pp 73–83.
 Nair, V. Sankaran. Nanchinadu: Harbinger of Rice and Plough Culture in the Ancient World.

Mga sumpay ha gawas 

 The Rotherham Plough  – the first commercially successful iron plough
 History of the steel plough  – as developed by John Deere in the US
 Breast Ploughs and other antique hand farm tools
 "Tractor Guide Saves Labor for the Farmer", Popular Mechanics, December 1934.

Agrikultura