Nasution, Rani Rahmadani, et al. “Students’ Perceptions of Environment-Based Biology Learning in the School Surroundings Among Students at SMA Swasta HAS Sepakat Negeri Lama, Labuhanbatu”. Bioscientist : Jurnal Ilmiah Biologi, vol. 14, no. 2, May 2026, pp. 680-9, doi:10.33394/bioscientist.v14i2.20136.