[1]
Erwin Harahap, D., Astuti Kuswardani, R. , HS Siregar, T. and Darwis, M. 2024. Nira Production In Terms Of Slope Level In South Tapanuli District. International Journal of Science and Environment (IJSE). 4, 4 (Nov. 2024), 112–116. DOI:https://doi.org/10.51601/ijse.v4i4.115.