Lestari, Ria.
" PENGARUH PENAMBAHAN ASAM HUMAT PADA PUPUK CAIR ECENG GONDOK (Eichhornia crassipes) TERHADAP TANAMAN BAYAM" <em>CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry)</em> [Online], Volume 9 Number 1 (31 May 2021)