diff --git a/citations.txt b/citations.txt
index c8bd8fa..17037bd 100644
--- a/citations.txt
+++ b/citations.txt
@@ -50,6 +50,8 @@ DeepFace is cited by the following papers.
 
 [19] Grimmer, Marcel, Raghavendra Ramachandra, and Christoph Busch. "Deep Face Age Progression: A Survey." IEEE Access (2021).
 
+[20] Wang, Junda et al. “How COVID-19 Have Changed Crowdfunding: Evidence From GoFundMe.” (2021).
+
 Based on the following academic repositories
 
 [1] Google Scholar: https://scholar.google.com/scholar?oi=bibs&hl=tr&cites=17652496388087594988