diff --git a/app/Helpers/helpers.php b/app/Helpers/helpers.php
new file mode 100644
index 0000000..3fafc2e
--- /dev/null
+++ b/app/Helpers/helpers.php
@@ -0,0 +1,39 @@
+<?php
+
+use Illuminate\Support\Facades\Log;
+    
+    if(!function_exists('calculatePeriodDates')) {
+        /**
+         * Fungsi untuk menghitung tanggal periode berdasarkan periode yang diberikan
+         * Jika periode 202505, mulai dari tanggal 9 sampai akhir bulan
+         * Jika periode lain, mulai dari tanggal 1 sampai akhir bulan
+         */
+        function calculatePeriodDates($period)
+        {
+            $year = substr($period, 0, 4);
+            $month = substr($period, 4, 2);
+
+            // Log untuk debugging
+            Log::info('Calculating period dates', [
+                'period' => $period,
+                'year' => $year,
+                'month' => $month,
+            ]);
+
+            if ($period === '202505') {
+                // Untuk periode 202505, mulai dari tanggal 9
+                $startDate = \Carbon\Carbon::createFromDate($year, $month, 9,'Asia/Jakarta');
+            } else {
+                // Untuk periode lain, mulai dari tanggal 1
+                $startDate = \Carbon\Carbon::createFromDate($year, $month, 1,'Asia/Jakarta');
+            }
+
+            // Tanggal akhir selalu akhir bulan
+            $endDate = \Carbon\Carbon::createFromDate($year, $month, 1)->endOfMonth();
+
+            return [
+                'start' => $startDate,
+                'end' => $endDate,
+            ];
+        }
+    }
\ No newline at end of file
diff --git a/app/Http/Requests/PrintStatementRequest.php b/app/Http/Requests/PrintStatementRequest.php
index c0c98b0..601e47d 100644
--- a/app/Http/Requests/PrintStatementRequest.php
+++ b/app/Http/Requests/PrintStatementRequest.php
@@ -33,8 +33,7 @@ class PrintStatementRequest extends FormRequest
                             $fail('Account number is required when statement type is not specified.');
                         }
                     }
-                },
-                'string'
+                }
             ],
             'stmt_sent_type' => ['nullable', 'array'],
             'stmt_sent_type.*' => ['string', 'in:ALL,BY.EMAIL,BY.MAIL.TO.DOM.ADDR,BY.MAIL.TO.KTP.ADDR,NO.PRINT,PRINT'],
diff --git a/module.json b/module.json
index 5f83d10..2e33c14 100644
--- a/module.json
+++ b/module.json
@@ -8,7 +8,9 @@
     "providers": [
         "Modules\\Webstatement\\Providers\\WebstatementServiceProvider"
     ],
-    "files": [],
+    "files": [
+        "app/Helpers/helpers.php"
+    ],
     "menu": {
         "main": [
             {