@book{168980,
	author = {Nam, Chun Ja, and Park, Jong Sung,},
	title = {Why? MATEMATIK.},
	publisher = {Orbit Buku Sdn. Bhd.,},
	year = {[2017?]},
	address = {Petaling Jaya, Selangor :},
	note = {Includes questions and answers}
}