Bulgaria Things To Know Before You Buy
Bài chi tiết: Lịch sử buổi đầu Ottoman Bulgaria và Sự thức tỉnh dân tộc của BulgariaBulgaria is relatively well-endowed with various each metallic and nonmetallic minerals. Geologic exploration has identified about forty coal basins, which collectively consist of Pretty much 3 billion a great deal of tested recoverable reser