na INLIS000000000001064 ind 0010-0724001064 Sahabat Pintarku Belajar Trigonometri Pintarku Belajar Trigonometri Muslikhah Muslikhah Surakarta : PT era pustaka utama 2008 76 hlm. 978-602-8024-02-0 516.24 MUS S 516 Geometri P29/CP/24/1064