@book{168979,
	author = {Park, Sang Wook, and Park, Sung Hwan,},
	title = {Why? MATEMATIK.},
	publisher = {Orbit Buku Sdn. Bhd.,},
	year = {[2017?]},
	address = {Petaling Jaya, Selangor :},
	note = {Includes questions and answers}
}