Marianne Izen

• Eduqas Biology for A Level Year 1 and AS
• Eduqas Biology for A Level Year 2
• WJEC Biology for AS Level
• WJEC Biology for A2 Level
• Eduqas Biology for A Level Year 2 and A2
• CBAC Bioleg ar gyfer UG
• WJEC AS & A2 Biology
• CBAC Bioleg Ar Gyfer U2
• CBAC Bioleg Ar Gyfer U2 - Argraffiad Diwygiedig (WJEC Biology for A2 Student Book - Revised Edition)
• CBAC Bioleg Ar Gyfer UG Ail Argraffiad
• Mathematics for A Level Biology : A Course Companion
• Maths for A Level Biology