@article{{alhadi}{}, author = {Nasution, A.}, title = { PERKEMBANGAN ILMU PENGETAHUAN PADA PERIODE HARUN AL-RASYID DAN AL-MAKMUN}, journal = {Jurnal Ilmiah Al-Hadi}, volume = {2}, number = {2}, year = {2018}, doi = {10.54248/alhadi.v2i2.147}, url = {https://jurnal.pancabudi.ac.id/index.php/alhadi/article/view/147} }