Choong TY, Paterson WR, Scoot DM. A Neat Way to Calculate the Gas Velocity from the Ergun Equation in a Packed Bed. [Internet]. 31 Desember 2004 [dikutip 8 Juni 2025];4(1):8-10. Tersedia pada: https://journal.ugm.ac.id/v3/AJChE/article/view/7578