Sopian M, Nurmayulis, Sodiq AH, Rumbiak JER. Optimal growth conditions for avocado (Persea americana Mill.) seedlings using biofertilizer-based approach with biosurfactant diethanolamide palm olein and neem extract. J. Ilm. Pertan. 2023;20(3):258-270. doi:10.31849/jip.v20i3.16276