skl/app/Models/Kabupaten.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class Kabupaten extends Model
{
    protected $table = 'Kabupaten';
    protected $primaryKey = 'KabupatenId';
    protected $fillable = [
        'KabupatenId',
        'NamaKabupaten',
    ];
}