Best way to travel from newark to harrisburg through public transport?

I plan to travel to Harrisburg from Newark Airport. What's the best way to get to Harrisburg through public transport given that I'll be carrying some luggage and my flight will land around 2 pm at Newark.Best way to travel from newark to harrisburg through public transport?Amtrak does that route for 50 bucks nonstop, it leaves at 3 from the terminal station (6pm on the weekend)- so you should have enough time if your not late, otherwise you can take greyhound.