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Simonsen, Gunvor (April 2015). "Belonging in Africa: Frederik Svane and Christian Protten on the Gold Coast in the Eighteenth Century". Itinerario. 39 (1): 91–115. doi:10.1017/S0165115315000145. ISSN0165-1153. S2CID162672218.
Lindberg, Carter (13 September 2013). "The Pietist Impulse in Christianity ed. by Christian T. Collins Winn et al. (review)". The Catholic Historical Review. 99 (3): 582–583. doi:10.1353/cat.2013.0138. ISSN1534-0708. S2CID161528778.
"Osu Salem". 29 March 2017. Archived from the original on 29 March 2017. Retrieved 24 November 2017.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
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Simonsen, Gunvor (April 2015). "Belonging in Africa: Frederik Svane and Christian Protten on the Gold Coast in the Eighteenth Century". Itinerario. 39 (1): 91–115. doi:10.1017/S0165115315000145. ISSN0165-1153. S2CID162672218.
Lindberg, Carter (13 September 2013). "The Pietist Impulse in Christianity ed. by Christian T. Collins Winn et al. (review)". The Catholic Historical Review. 99 (3): 582–583. doi:10.1353/cat.2013.0138. ISSN1534-0708. S2CID161528778.