Konten dihapus Konten ditambahkan
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== Rujukan ==
{{reflist
| colwidth = 20em
| refs =
}}
{{refbegin}}
* {{cite book
| last = Asoka
| first = Andi
| year = 2005
| title = Sawahlunto Dulu, Kini, dan Esok Menyongsong Kota Wisata Tambang Yang Berbudaya
| location = Yogyakarta
| publisher = Meja Malam Desain Grafis dan Nailil Printika
| isbn = 978-979-3723-50-1
| url =
| ref = andi
}}
* {{cite book
| last = Erman
| first = Erwiza
| year = 2005
| location = Jakarta
| title = Membaranya Batu Bara: Konflik Kelas dan Etnik Ombilin Sawahlunto (1892-1996)
| publisher = Desantra
| ref = desantra
}}
* {{cite book
| title=Paco-Paco (Kota) Padang
| last=Colombijn
| first=Freek
| pages=65
}}
* {{cite book
| last = Hendrik de Greve
| first = Willem
| year = 1871
| title = Het Ombilien Kolenveld in de Padangsche Bovenlanden en Het Transportstelsel op Sumatra’s Westkust
| ref = degreve
}}
* {{cite book
| last = Brill
| first = E. J.
| title = Land en Volk van Sumatra
| year = 1916
| location = Leiden
| ref = brill
}}
* {{cite book
| last =
| first =
| year = 1992
| title = 100 Tahun Tambang Batubara Ombilin Sumatera Barat
| publisher = PT. Tambang Batubara Bukit Asam (Persero) Unit Pertambangan Ombilin
| ref = ptbo
}}
* {{cite web
| last = Saputra
| first = Yonni
| title = Mengenang Sosok Willem Hendrik De Greve: Mijn Ingenieur yang Mengantarkan Sawahlunto Menjadi Kota Modern Berwajah Indo Belanda
| url = http://teraszaman.blogspot.com/2011/04/mengenang-sosok-willem-hendrik-de-greve.html?showComment=1335436721718#c7681554867805374251
| work = Teraszaman (blog)
| accessdate = 26 April 2012
| ref = yonni
}}
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