International Software Testing Qualifications Board & Graham, D. (2008). Foundations of software testing: ISTQB Certification (2nd ed.). Thomson ; Cengage Learning.
Lua i Stíl Chicago (17ú heag.)International Software Testing Qualifications Board agus Dorothy Graham. Foundations of Software Testing: ISTQB Certification. 2nd ed. Australia : New Delhi: Thomson ; Cengage Learning, 2008.
Lua MLA (8ú heag.)International Software Testing Qualifications Board agus Dorothy Graham. Foundations of Software Testing: ISTQB Certification. 2nd ed. Thomson ; Cengage Learning, 2008.
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