“UPAYA MENINGKATKAN KETERAMPILAN PROSES IPA MELALUI MODEL PEMBELAJARAN PROBLEM BASED LEARNING PADA KELAS V SDN 8 SINTANG”. JGK (Jurnal Guru Kita), vol. 5, no. 3, June 2021, pp. 98-107, https://doi.org/10.24114/jgk.v5i3.25787.