Coba jelasin Masa Modern dari Gerobak tangan dong

Honda HPE60, an kereta sorong yang dibantu dorongan tenaga listrik diproduksi tahun 1998.

M. J. T. Lewis, "The Origins of the Wheelbarrow," Technology and Culture, Vol. 35, No. 3. (Jul., 1994), pp. 453–475

Andrea L. Matthies, "The Medieval Wheelbarrow," Technology and Culture, Vol. 32, No. 2, Part 1. (Apr., 1991), pp. 356–364

Needham, Joseph (1986). Science and Civilization in China: Volume 4, Physics and Physical Technology, Part 2, Mechanical Engineering. Taipei: Caves Books Ltd.

Temple, Robert. (1986). The Genius of China: 3,000 Years of Science, Discovery, and Invention. With a forward by Joseph Needham. New York: Simon and Schuster, Inc. ISBN 0-671-62028-2.