Malcheva, Natalia (2 December 2016). "The "Womb" cave helps childless". Travel Bulgaria News. Archived from the original on 17 February 2022. Retrieved 17 February 2022.
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Malcheva, Natalia (2 December 2016). "The "Womb" cave helps childless". Travel Bulgaria News. Archived from the original on 17 February 2022. Retrieved 17 February 2022.
"The womb – Cave". Nicodia. Archived from the original on 17 February 2022. Retrieved 17 February 2022.
