[1]
H. Hairida, L. Hadi, and D. Kurniasih, “Validity of Project Based Integrated Environmental Science Problem Learning (PBIESPL) Model with Authentic Assessment”, j. kependidikan. has. penelit. kaji. kepustakaan. bid. pendidik. pengajaran. n.a., vol. 8, no. 2, pp. 341–354, Jun. 2022.