GÜMGÜM, Bahattin2019-04-222019-04-221303-6017http://hdl.handle.net/20.500.12575/61838https://doi.org/10.1501/Commub_0000000288THE LEACHING OF YTTRIUM FROM AVNIK (BİNGÖL-TURKEY) APATITE BY DILUTE SULFURIC ACID135140