diff --git a/.github/workflows/golang_test.yml b/.github/workflows/golang_test.yml
index f3d4fa9..93356be 100644
--- a/.github/workflows/golang_test.yml
+++ b/.github/workflows/golang_test.yml
@@ -17,4 +17,6 @@ jobs:
         with:
           go-version: '^1.18'
       - name: run unit testing
-        run: go test $(go list ./... | grep -v 'basic\|intermediate\|utilities')
+        run: make test
+      - name: unittesting dengan race-condition
+        run: make test-race
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..c05f9ff
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,22 @@
+EXCLUDE_FOLDER = "basic\|intermediate\|utilities"
+TEST_PACKAGE := $(shell go list ./... | grep -v $(EXCLUDE_FOLDER))
+
+.DEFAULT_GOAL := test
+
+test:
+	@echo "testing file golang"
+	go test -v $(TEST_PACKAGE)
+
+test-race:
+	@echo "testing dengan race detector"
+	go test -race -v $(TEST_PACKAGE)
+
+format:
+	@echo "format kode"
+	go fmt ./...
+
+help:
+	@echo "command param tersedia"
+	@echo " make test       - jalankan unittesting"
+	@echo " make test-race  - jalankan testing dengan race detector"
+	@echo " format          - format kode"