상품명 : Impact Social Studies GK 5 : Learning and Working Together
상품명 : Impact Social Studies/TE G1 (Teacher's Edition)
상품명 : Impact Social Studies/TE G2 (Teacher's Edition)
상품명 : Impact Social Studies/TE G3 (Teacher's Edition)
상품명 : Impact Social Studies/TE G4 (Teacher's Edition)
상품명 : Impact Social Studies/TE G5 (Teacher's Edition)
상품명 : Impact Social Studies/TE GK (Teacher's Edition)