Aziz UA, Mulyanto DC, Riyanto E. Pengaruh Penambahan Semen Portland dan Abu Sekam Padi terhadap Kuat Dukung Tanah Lempung. suryabeton [Internet]. 2023Mar.31 [cited 2025May4];7(1):40-1. Available from: https://ebook.umpwr.ac.id/suryabeton/article/view/3033