Ambotang, Abdul Said, Baharom Mohamad, Mohd Yusof Abdullah, Mohd Suhaimi Taat, and Roslee Talip. 2014. “Faktor Penyumbang Terhadap Pencapaian Sifar Ujian Penilaian Sekolah Rendah Di Sarawak”. Sains Humanika 2 (4). https://doi.org/10.11113/sh.v2n4.487.