Formulas in Business Process

Hello,

How can I do this query by formulas to apply on business process?

select c.Email from SysAdminUnit aunit
inner join SysUserInRole urole on urole.SysUserId = aunit.Id
inner join Contact c on c.Id = aunit.ContactId
where urole.SysRoleId in
(select aunit.Id  from SysAdminUnit aunit
where
(aunit.name = 'Head of Customer Services' or
aunit.name = 'Cash Ops Manager' or
aunit.name = 'Operations Team Leader'))

Thank you