Fluent 단계 중 Science관련 10종만 발송됩니다.

PS-Four Corners Fl 41 B/B:Book of Space Qu (B+CD+W)
PS-Four Corners Fl 44:Animal Look-Alikes (B+CD+W)
PS-Four Corners Fl 45:Balloons (B+CD+W)
PS-Four Corners Fl 46:Catching the Wind (B+CD+W)
PS-Four Corners Fl 48:Coconut Seed or (B+CD+W)
PS-Four Corners Fl 49:Could We Live on the. (B+CD+W)
PS-Four Corners Fl 51:Fun With Shadows (B+CD+W)
PS-Four Corners Fl 53:Journey to the Under (B+CD+W)
PS-Four Corners Fl 57:The Changing Earth (B+CD+W)
PS-Four Corners Fl 60:We Need Insects! (B+CD+W)