රවේශය 22 May 2017.↑ "Ranking Of The World's Diamond Mines By Estimated 2013 Production" සංරක්ෂණය කළ පිටපත 21 සැප්තැම්බර් 2013 at the Wayback Machine, Kitco, 20 August 2013.↑ "Beyond 20/20 WDS". unctadstat.unctad.org. සම්ප්‍රවේශය 2021-12-29.↑ "The Economic Performance of Copyright-Based Industries". www.wipo.int (ඉංග්‍රීසි බසින්). සම්ප්‍රවේශය 2021-12-29.↑ The Economic Contribution of Copyright Industries in Botswana (PDF). June 2019. ISBN 978-99968-3-063-1. 2022-10-09 දින පැවති මුල් පිටපත වෙතින් සංරක්ෂිත පිටපත (PDF). සම්ප්‍රවේශය 29 December 2021. {{cite book}}: |website= ignored (help)↑ "Botswana". The World Factbook (2024 ed.). Central Intelligence Agency. 10 May 2022. (Archived 2022 edition)↑ Betts, Alexander; Kaytaz, Ezra (2009). "National and international responses to the Zimbabwean exodus: implications for the refugee protection regime" (PDF). Research Papers. 175. Policy Development and Evaluation Service, United Nations High Commissioner for Refugees. {{cite journal}