@inbook{inbook, title  = {{Viva 5.6 – A ladder of change}},

 publisher = {{CRC Press}},

 url = {{https://doi.org/10.1201/9781003673491-24 }},

 year = {{2026}},

 month = {{10}},

 author = {{Mahmood H and Wali R and Crane H}},

 doi = {{10.1201/9781003673491-24}},

 pages = {{130-137}},

 note = {{Accessed on 2026/11/07}}}