Analysis of information sources in references of the Wikipedia article "Rel" in Indonesian language version.
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{{cite book}}: Pemeliharaan CS1: Lokasi tanpa penerbit (link)Premium steel rails will not be used, because the material has an increased potential to fracture at very low temperatures. Regular carbon steel is preferred, with a very high premium on the cleanliness of the steel. For this project, a low-alloy rail with standard strength and a Brinell hardness in the range of 300 would be most appropriate.
{{cite news}}: Pemeliharaan CS1: layanan pengarsipan yang sudah usang (link)