Samsurizal, Samsurizal, and Eka Juliafad. 2022. “KARAKTERISTIK PASIR DAN ABU AMPAS TEBU ASAL STINGKAI KABUPATEN AGAM SUMATERA BARAT”. Jurnal Applied Science in Civil Engineering 3 (4), 370-74. https://doi.org/10.24036/asce.v3i4.57283.