APA-ийн эшлэл(7 дахь хэвлэлт)

Valchev, D., Ribarova, I., Borisov, B., Radovanov, V., Lyubomirova, V., Kostova, I., . . . Lazarova, S. (2024). Valuable elements in sludge from eight municipal wastewater treatment plants in relation to their recovery potential. SpringerOpen.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Valchev, Dobril, Irina Ribarova, Boyan Borisov, Viden Radovanov, Valentina Lyubomirova, Irina Kostova, Galina Dimova, Orhideya Karpuzova, ба Svetlana Lazarova. Valuable Elements in Sludge from Eight Municipal Wastewater Treatment Plants in Relation to Their Recovery Potential. SpringerOpen, 2024.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Valchev, Dobril, et al. Valuable Elements in Sludge from Eight Municipal Wastewater Treatment Plants in Relation to Their Recovery Potential. SpringerOpen, 2024.