Home › Authors › Singapore Asian Publishers Staff 👤 Singapore Asian Publishers Staff 4 books Books by Singapore Asian Publishers Staff Singapore Math Challenge, Grades 2 - 5 2013 Singapore Math Challenge, Grades 4 - 6 2013 Singapore Math Challenge, Grades 5 - 8 2013 70 Must-Know Word Problems, Gr 70 Must-Know Word Problems, Grade 6 2009