四五快读 Si Wu Kuai Du Book 1-8 Resourceful books to help children self read mandarin, step by step reading, repetitive engaging passage and short story 1 set 8buku Perbuku 10session Cocok utk usia 3+ Pinyin hanya diberikan di halaman flashcards total penguasaan kosakata 552, total kata 1740 Include flashcards of new words