C Program on Menu (Menu Driven Program on C)

#include <stdio.h>
#include <stdlib.h>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */
void menu();
void promo();
void beli();
void list();
void data();

void data()
{
	char kode[7];
	float harga,jumlah,total;
}

int main()
{
	menu();
	char pil='0';
	while (pil='4')
	{
		pil=getche();
		switch(pil)
		{
			case '1':
				break;
			case '2':
				beli();
			case '3':
				list();
			case '4':
				return 0;
		}
	}
return 0;
}


void menu()
{
int i;
char c[4][20]=
{
	"Promo","Membeli","Daftar Motor","Exit"
};
system("CLS");
printf("\nMENU DATA SISTEM INFORMASI MOTOR");
printf("\n-------------------------------------------------");
for(i=0;i<4;i++)
	{
	printf("\n[%d] %s",i+1,c[i]);
	}
printf("\n-------------------------------------------------");
printf("\nPILIHAN : ");
}

void promo()
{
	
}

void beli()
{
char nama[50];
char ktp[8];
char kerja[15];
char tempat[10];
char loop1;
int tgl,input;
//input data pembeli
printf("\n__________________________________________________________________________\n");
printf("FORM DATA PEMBELI MOTOR\n");
printf("__________________________________________________________________________");
printf("\nNama\t\t\t\t=\t ");scanf("%s",&nama);
printf("\nNo KTP\t\t\t\t=\t ");scanf("%s",&ktp);
printf("\nPekerjaan\t\t\t=\t ");scanf("%s",&kerja);
printf("\nTempat Lahir\t\t\t=\t ");scanf("%s",&tempat);
printf("\nTanggal, Bulan, dan Tahun Lahir\t=\t ");scanf("%d",&tgl);
printf("\n__________________________________________________________________________");
system("cls");
//output data pembeli
printf("\n__________________________________________________________________________\n");
printf("FORM DATA PEMBELI MOTOR\n");
printf("__________________________________________________________________________");
printf("\nNama\t\t\t\t=\t%s",nama);
printf("\nNo KTP\t\t\t\t=\t%s",ktp);
printf("\nPekerjaan\t\t\t=\t%s",kerja);
printf("\nTempat Lahir\t\t\t=\t%s",tempat);
printf("\nTanggal, Bulan, dan Tahun Lahir\t=\t%d",tgl);
printf("\n__________________________________________________________________________\n");
system("PAUSE");

main();
}

void list()
{
int i;
char motor[5][25]=
{
	"jupiter",
	"mio",
	"ninja",
	"supra",
	"scoopy"
};
int harga[5]=
{
	8000000,9000000,70000000,6000000,10000000
};
	printf("\n__________________________________________________________________________\n");
	printf("FORM DATA DAFTAR MOTOR\n");
	printf("__________________________________________________________________________");
	printf("\nNo.\tDaftar Motor\t\t\t\tHarga Motor\n");
	for(i=0;i<=4;i++)
	{
		printf("\n%d\t%s\t\t\t\t\t%d\n",i+1,motor[i],harga[i]);
	}
	system("PAUSE");
	main();
}