diff --git a/03_source/mobile/src/App.tsx b/03_source/mobile/src/App.tsx
index 0fc88ca..12405b8 100644
--- a/03_source/mobile/src/App.tsx
+++ b/03_source/mobile/src/App.tsx
@@ -137,9 +137,11 @@ const IonicApp: React.FC<IonicAppProps> = ({ darkMode, schedule, setIsLoggedIn,
             {/* Event and profile detail pages */}
 
             <Route exact={true} path="/event_detail/:id" component={EventDetail} />
-            <Route exact={true} path="/dummy_pay_page" component={DummyPayPage} />
-            <Route exact={true} path="/payment_success" component={PaymentSuccess} />
-            <Route exact={true} path="/payment_failed" component={PaymentFailed} />
+
+            <Route exact={true} path={PATHS.DUMMY_EVENT_PAY_PAGE} component={DummyEventPayPage} />
+            <Route exact={true} path={PATHS.DUMMY_PAY_PAGE} component={DummyPayPage} />
+            <Route exact={true} path={PATHS.PAYMENT_SUCCESS} component={PaymentSuccess} />
+            <Route exact={true} path={PATHS.PAYMENT_FAILED} component={PaymentFailed} />
 
             <Route exact={true} path="/profile/:id" component={MemberProfile} />
 
@@ -148,8 +150,6 @@ const IonicApp: React.FC<IonicAppProps> = ({ darkMode, schedule, setIsLoggedIn,
 
             <Route exact={true} path="/helloworld" component={Helloworld} />
 
-            <Route exact={true} path={PATHS.DUMMY_EVENT_PAY_PAGE} component={DummyEventPayPage} />
-
             <Route
               path="/logout"
               render={() => {
diff --git a/03_source/mobile/src/PATHS.ts b/03_source/mobile/src/PATHS.ts
index 8a83bfc..4dd960d 100644
--- a/03_source/mobile/src/PATHS.ts
+++ b/03_source/mobile/src/PATHS.ts
@@ -35,6 +35,7 @@ const PATHS = {
   PARTY_USER_SIGN_UP: '/partyUserSignUp',
 
   DUMMY_EVENT_PAY_PAGE: '/DummyEventPayPage',
+  DUMMY_PAY_PAGE: 'dummy_pay_page',
   PAYMENT_SUCCESS: '/payment_success',
   PAYMENT_FAILED: '/payment_failed',
 
diff --git a/99_references/ionTok b/99_references/ionTok
new file mode 160000
index 0000000..6cd7c7e
--- /dev/null
+++ b/99_references/ionTok
@@ -0,0 +1 @@
+Subproject commit 6cd7c7eb3c7002013f9073432a7049d7ea76cfc8
diff --git a/99_references/my-page-demo b/99_references/my-page-demo
new file mode 160000
index 0000000..6fc803f
--- /dev/null
+++ b/99_references/my-page-demo
@@ -0,0 +1 @@
+Subproject commit 6fc803fb318d07936315d658177afd94123e5c68