如何建立这个查询到laravel雄辩

我有这个疑问如何建立这个查询到laravel雄辩

select est.*, bf.followup as bf_follow, bf.unidad as bf_unidad, bu.unidad as bu_unidad, bu.asistencia as bu_asistencia, bu.calificacion as bu_calificacion 
from estudiantes as est 
inner join bluecard as bc on bc.estudiante = est.usuario_id 
inner join beneficiarios as bene on bene.usuario_creado = est.usuario_id 
inner join (
    select bluecard, followup, unidad 
    from bluecard_followups 
    order by bf_id desc 
) bf on (bf.bluecard = bc.bc_id) 
left join (
    select bluecard, unidad, asistencia, calificacion 
    from bluecard_unidades 
    order by bu_id desc 
) bu on (bu.bluecard = bc.bc_id) 

where bc.status = 1 
group by est.usuario_id 
limit 500

我知道如何使雄辩加入但自加入我不知道怎么写。

发生过类似的事情吗？有没有人需要像laravel这样的查询？

帮帮我！谢谢

编辑

我会像这样的查询：

$estudiantes = Estudiantes::select(
          DB::raw(" 
       select est.*, bene.contrato as nro_contrato, bf.followup as bf_follow, bf.unidad as bf_unidad, bu.unidad as bu_unidad, bu.asistencia as bu_asistencia, bu.calificacion as bu_calificacion 
       from estudiantes as est 
       inner join bluecard as bc on bc.estudiante = est.usuario_id 
       inner join beneficiarios as bene on bene.usuario_creado = est.usuario_id 
       inner join (
       select bluecard, followup, unidad 
       from bluecard_followups 
       order by bf_id desc 
      ) bf on (bf.bluecard = bc.bc_id) 
       left join (
       select bluecard, unidad, asistencia, calificacion 
       from bluecard_unidades 
       order by bu_id desc 
      ) bu on (bu.bluecard = bc.bc_id) 

       where bc.status = 1 
       group by est.usuario_id 
       limit 500")) 
        ->get();

，我得到这个错误：