Analysis of information sources in references of the Wikipedia article "Jalur kereta api Batavia–Buitenzorg (1873–1929)" in Indonesian language version.
In 1913 the NIS took over the 3' 6" gauge 56 kms line from Batavia (Jakarta) to Buitenzorg (Bogor), which had been opened in 1873 by the Batavia-Buitenzorg Spoorweg Maatschappij (BBzSM).