diff --git a/app/Helpers/Lpj.php b/app/Helpers/Lpj.php
index 5c9351e..1f6a711 100644
--- a/app/Helpers/Lpj.php
+++ b/app/Helpers/Lpj.php
@@ -134,7 +134,7 @@
         if ($penawaran) {
             $isNum = substr($maxCode, 2); // memastikan string ke 3 s/d 8 adalan numiric
             $isNP  = substr($maxCode, 0, 2);
-            if ((8 == strlen($maxCode)) && ("NP" == $isNP) && (isNumeric($isNum))) {
+            if ((8 == strlen($maxCode)) && ("NP" == $isNP) && (ctype_digit($isNum))) {
                 $code_penawaran_last = substr($maxCode, -4);
                 $year_penawaran_last = Carbon::parse($penawaran->created_at)->year;
                 $year_now            = Carbon::now()->year;
@@ -149,11 +149,6 @@
         return 'NP' . Carbon::now()->format('y') . $noUrutAkhirString;
     }
 
-    function isNumeric($str)
-    {
-        return ctype_digit($str);
-    }
-
     // generate last penawaran.no_spk
     function onLastnumberCodePenawaranSPK($jenis_laporan_code)
     : string
@@ -188,46 +183,7 @@
     function onRomawi(int $bln)
     : string
     {
-        switch ($bln) {
-            case 1:
-                return "I";
-                break;
-            case 2:
-                return "II";
-                break;
-            case 3:
-                return "III";
-                break;
-            case 4:
-                return "IV";
-                break;
-            case 5:
-                return "V";
-                break;
-            case 6:
-                return "VI";
-                break;
-            case 7:
-                return "VII";
-                break;
-            case 8:
-                return "VIII";
-                break;
-            case 9:
-                return "IX";
-                break;
-            case 10:
-                return "X";
-                break;
-            case 11:
-                return "XI";
-                break;
-            case 12:
-                return "XII";
-                break;
-
-        }
-
+        return convertToRoman($bln);
     }
 
     function penyebut($nilai)
@@ -304,15 +260,6 @@
         return $hariKerja;
     }
 
-    function holidays()
-    {
-        return HolidayCalendar::pluck('date')->map(
-            function ($item) {
-                return Carbon::parse($item)->format('Y-m-d');
-            },
-        )->toArray();
-    }
-
     function countPermohonanForUser($userId)
     {
         $validStatuses = [