Josip Harcet; Lorraine Heinrichs; Palmira Mariz Seiler; Marlene Torres Skoumal. (2012). IB Course Companion: Maths Higher: 2nd edition (International Baccalaureate) (Pap/Cdr.). Oxford University Press.
Chicago-čujuhus (17. p.)Josip Harcet; Lorraine Heinrichs; Palmira Mariz Seiler; Marlene Torres Skoumal. IB Course Companion: Maths Higher: 2nd Edition (International Baccalaureate). Pap/Cdr. Oxford University Press, 2012.
MLA-čujuhus (9. p.)Josip Harcet; Lorraine Heinrichs; Palmira Mariz Seiler; Marlene Torres Skoumal. IB Course Companion: Maths Higher: 2nd Edition (International Baccalaureate). Pap/Cdr. Oxford University Press, 2012.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.