TY - BOOK AU - Nam,Chun Ja AU - Park,Jong Sung TI - Why? MATEMATIK SN - 9789673763238 U1 - 513.076 23 PY - 2017///?] CY - Petaling Jaya, Selangor PB - Orbit Buku Sdn. Bhd. KW - Mathematics KW - Problems, exercises, etc KW - Arithmetic KW - Study and teaching KW - Comic strips N1 - Includes questions and answers ER -