Pratama, Muh. Anugrah (2022) EFEKTIVITAS BIOCHAR TANDAN KOSONG KELAPA SAWIT DAN BERBAGAI TANAMAN PENUTUP TANAH TERHADAP KUALITAS TANAH PURNA TAMBANG NIKEL = The effectiveness of biochar of oil palm empty bunches and cover crops on post-mining nickel soil quality. Skripsi thesis, Universitas Hasanuddin.