Desnita, Desnita, et al. “STRATEGI WORKSHOP PENYUSUNAN BAHAN AJAR FISIKA BERBASIS PROBLEM BASED LEARNING BAGI GURU SMA MA”. PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL), vol. 3, Oct. 2014, pp. 190-5, https://journal.unj.ac.id/unj/index.php/prosidingsnf/article/view/5504.