Palura, F., and D. Widyaningrum. “PENGEMBANGAN LEMBAR KERJA SISWA (LKS) DENGAN MODEL PROBLEM BASED LEARNING (PBL) DIPADU THINK PAIR SHARE (TPS)”. Edubiotik : Jurnal Pendidikan, Biologi Dan Terapan, Vol. 2, no. 02, Sept. 2017, pp. 40-46, doi:10.33503/ebio.v2i02.131.