Lesmono, Albertus, 		Arifin, Zainal, AND 		., Maryani.
" PENGEMBANGAN LKS BERBASIS PROBLEM BASED LEARNING PADA BAHASAN SUHU DAN KALOR DI SMA NU" <em>FKIP e-PROCEEDING</em> [Online], Volume 2 Number 1 (23 December 2017)