Rohmani Nur Indah and Galuh Nur Rohmah 2020. The Communicativeness and Critical Thinking Devices of Language Supplementary Materials for Primary School: Piranti Berpikir Kritis dan Komunikatif Materi Penunjang Kebahasaan di Sekolah Dasar. RETORIKA: Jurnal Ilmu Bahasa. 6, 2 (Oct. 2020), 165-172. DOI:https://doi.org/10.22225/jr.6.2.2300.165-172.