Hristov, Z., Stoev, T., Savov, S. Sexual development of boys and girls aged 14-18 years, studing of different types of school. София: 2008 202-209,.
Hristov, Z., Stoev, T., Savov, S. Sexual development of boys and girls aged 14-18 years, studing of different types of school. София: 2008 202-209,.
Hristov, Z., Stoev, T., Savov, S. (2008) Sexual development of boys and girls aged 14-18 years, studing of different types of school, София: 202-209,.
Hristov, Z., Stoev, T., & Savov, S. (2008). Sexual development of boys and girls aged 14-18 years, studing of different types of school. София: 202-209.
Hristov Z, Stoev T, Savov S. Sexual development of boys and girls aged 14-18 years, studing of different types of school. София: 2008. p. 202-209.