“INSTRUMENT VALIDITY FOR LEARNING RESOURCES ANALYSIS OF DIGITAL DISASTER FOR COASTAL AREAS: AN ANALYSIS OF AIKEN’S V”. Primary: Jurnal Pendidikan Guru Sekolah Dasar, vol. 12, no. 1, Feb. 2023, pp. 114-25, https://doi.org/10.33578/jpfkip.v12i1.9320.