Leloup, Marcel
Tractors for logging
Italy: Food and Agriculture, 1956
 Buku Teks
Lewycka, Marina
A short history of tractors in Ukrainian
Penguin Books, 2006
 Buku Teks SO
Jones, Fred R. [Fred Rufus], 1893-
Farm gas engines and tractors
McGraw-Hill, 1963
 Buku Teks SO
Winarto
Teknik Asesmen Umur Sisa Pakai (Remaining Life Assessment) Turbine Casing di Unit Pembangkit Listrik = Remaining Life Assessment Technique for Turbine Casing in Power Plant Units
Fakultas Teknik Universitas Indonesia, 2023
 UI - Tugas Akhir
Fenna, Donald
A dictionary of weights, measures, and units
Oxford University Press, 2003
 Buku Referensi