INS Vagsheer (S26)

Class | Indian Navy. indiannavy.nic.in. [2015-12-28]. （原始内容存档于2016-01-13）.  INS Astradharini commissioned into Indian Navy. [2016-07-16]. （原始内容存档于2015-10-09）

  Archived copy. [2018-12-09]. （原始内容存档于2018-12-09）.  "Submarino Humaitá (S 41) – Falta muito pouco para ser lançado ao mar". [2020-12-03]. （原始内容存档于2021-05-05）