PEARCE, C. (2018). Cambridge IGCSE™ Maths Student’s Book. COLIINS.
Lua i Stíl Chicago (17ú heag.)PEARCE, CHRIS. Cambridge IGCSE™ Maths Student’s Book. COLIINS, 2018.
Lua MLA (9ú heag.)PEARCE, CHRIS. Cambridge IGCSE™ Maths Student’s Book. COLIINS, 2018.
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