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diff --git a/MQL5/Include/Math/AOs/PopulationAO/AO_RFO_RoyalFlushOptimization.mqh b/MQL5/Include/Math/AOs/PopulationAO/AO_RFO_RoyalFlushOptimization.mqh
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diff --git a/MQL5/Include/Math/AOs/PopulationAO/links.html b/MQL5/Include/Math/AOs/PopulationAO/links.html
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--- a/MQL5/Include/Math/AOs/PopulationAO/links.html
+++ b/MQL5/Include/Math/AOs/PopulationAO/links.html
@@ -90,6 +90,7 @@
         <tr><td>ASHA</td><td><a href="https://www.mql5.com/ru/articles/15980" target="_blank">artificial showering algorithm</a></td></tr>
         <tr><td>ASBO</td><td><a href="https://www.mql5.com/ru/articles/15347" target="_blank">adaptive social behavior optimization</a></td></tr>
         <tr><td>MEC</td><td><a href="https://www.mql5.com/ru/articles/13432" target="_blank">mind evolutionary computation</a></td></tr>
+        <tr><td>CSA</td><td><a href="https://www.mql5.com/ru/articles/17143" target="_blank">circle search algorithm</a></td></tr>
         <tr><td>IWO</td><td><a href="https://www.mql5.com/ru/articles/11990" target="_blank">invasive weed optimization</a></td></tr>
         <tr><td>Micro-AIS</td><td><a href="https://www.mql5.com/ru/articles/13951" target="_blank">micro artificial immune system</a></td></tr>
         <tr><td>COAm</td><td><a href="https://www.mql5.com/ru/articles/11786" target="_blank">cuckoo optimization algorithm M</a></td></tr>
diff --git a/MQL5/Include/Math/AOs/TestFunctions.mqh b/MQL5/Include/Math/AOs/TestFunctions.mqh
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diff --git a/MQL5/Include/Math/AOs/Utilities.mqh b/MQL5/Include/Math/AOs/Utilities.mqh
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