Gaya APA
Floristic and forest structural study in Batangtoru Watershed, North Sumatra. (2017).
Bogor:
Perhimpunan Biologi Indonesia.
Gaya MLA
Floristic and forest structural study in Batangtoru Watershed, North Sumatra.
.
Bogor:
Perhimpunan Biologi Indonesia,
2017.
Artikel.