Rociento, Michael M., Performance of concrete mixed with bugitis shell/ Michael M. Rociento, Jose L. Saluna Jr., Nico C. Yaguel - Nabua, Cmarines Sur : Camarines Sur Polytechnic Colleges ; 2014. - 98 leaves Undergraduate Thesis (BSCE) - Civil Engineering Subjects--Topical Terms: Concrete (bugitis shell)--Testing.