RUSLAN, HANIS NADIAH, Khairunisa Muthusamy, Sharifah Maszura Syed Mohsin, and M. S. Kirgiz. “Periwinkle Shell As Mixing Ingredient in Concrete: A Review”. CONSTRUCTION 1, no. 2 (October 6, 2021): 21–30. Accessed May 3, 2024. https://journal.ump.edu.my/construction/article/view/6499.