Macumber, Phillip G. (2015). "Water Heritage in Qatar". Cultural Heritages of Water: Thematic Study on The Cultural Heritages of Water in the Middle East and Maghreb. UNESCO World Heritage Convention. academia.edu. UNESCO. p. 223. Retrieved 21 February 2019.
Macumber, Phillip G. (2015). "Water Heritage in Qatar". Cultural Heritages of Water: Thematic Study on The Cultural Heritages of Water in the Middle East and Maghreb. UNESCO World Heritage Convention. academia.edu. UNESCO. p. 226. Retrieved 21 February 2019.
Macumber, Phillip G. (2015). "Water Heritage in Qatar". Cultural Heritages of Water: Thematic Study on The Cultural Heritages of Water in the Middle East and Maghreb. UNESCO World Heritage Convention. academia.edu. UNESCO. p. 227. Retrieved 21 February 2019.