Portable organic water filter with the use of coconut shell and seashells

by Ahmad Nordin, Norain, Sazeli, Zul Afiq, Juma’at, Nuramirah, Hashim, Shazana, Mohamad, Nurhana, Azharuddin, Ahmad Alif Syah, Zainin, Fitri Hakim, Mohamad Zurzain, Muhammad Zariff Mirza
Published 2020