Siswanto, Eko Huda S (December 26, 2009). "Ekspedisi Wisata Gereja Sion". Vivanews (in Indonesian). Archived from the original on August 18, 2010. Retrieved April 1, 2011.
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Siswanto, Eko Huda S (December 26, 2009). "Ekspedisi Wisata Gereja Sion". Vivanews (in Indonesian). Archived from the original on August 18, 2010. Retrieved April 1, 2011.