Extended Cyrillic: Bulgarian

Correction for the Bulgarian Cyrillic alphabet (contextual/language-specific substitutions) · Issue #1147 · be5invis/Iosevka · GitHub

File:Bulgarian cyrillic (bg).svg - Wikimedia Commons

A closer look at the Bulgarian stylistic variation of the Cyrillic script - Fontfabric™ Blog

Cyrillic Tradition: Origins and Inception - Fontfabric™ Blog

Extended Cyrillic for you typeface by Alexei Vanyashin on Behance

File:Old Bulgarian Alphabet.png - Wikipedia

4 things every graphic designer needs to know about Cyrillic

May 24: Honoring Cyrillic Tradition

GHEA Ayb Font for Web & Desktop on Rentafont

Bulgarian Cyrillic is Russian Cyrillic · Issue #187 · notofonts/latin-greek- cyrillic · GitHub

Manicotti Cyrillic & Greek