Digniin: tarjumaad toos ah Weydiinta mas'uul kama aha khaladaadka/tallaabooyinka la qaaday.
2014 NRA - Cutubka 4 - Khataraha - Qiimayn Buuxa - Muuqaalka H23 - Cudurka nooca hargabka (faafi) (pp.122-129)
Xukunka raacaya Module 3 Dhagaysi Hordhac ah 10ka Abriil 2024
INQ000068403 - Royal Academy of Engineering, Dib u eegis dibadeed ee Qiimaynta Khatarta Amniga Qaranka (NSRA) Habka - Talooyin loogu talagalay adkeysiga weyn, oo ku taariikhaysan Sebtembar 2021