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Beta - Wikipedia
Greek alphabet letters & symbols with pronunciation - RapidTables.com
β - Wiktionary, the free dictionary
Greek Beta Symbol Meaning, Origins and Uses Explained
Beta - Simple English Wikipedia, the free encyclopedia
Beta Definition & Meaning - Merriam-Webster
Beta Symbol in Greek Alphabet Β β
BETA Definition & Meaning | Dictionary.com
Β - Wiktionary, the free dictionary
Beta (Β, β) Definition | Math Converse