this.GameObject - Uses?

I've been looking through the documentation trying to find this "phrase" (if that term makes sense) of code and the explanation of its uses. I'm trying to script my AudioSource to enabled/disable on the game object that it's attached to, but cannot seem to get it to work.

I'm using C# and can't even manage to enable/disable the AudioSource with the 'GameObject.Find' phrase. I've looked through the documentation concerning that too but have also had no luck. However, I may have missed it because the docs are very hard to navigate and the sections aren't very clear on what they really contain. So forgive me if I've overlooked anything.

I'm trying to get a sound to play as an item is being collected. I have multiple collectable items and wish not to create new scripts for every item. Therefore, I'm trying to implement "this.gameObject" in my script, but for some reason it's causing problems. If anyone can provide assistance, it would be greatly appreciated.

This is my entire script. "Destroy (this.gameObject);" works, but how should it be used for what I need?

using UnityEngine; using System.Collections;

public class CollectItem : MonoBehaviour { public GameObject page; private bool showItemMessage = false; //private bool showCollectedMessage = false; private bool canbecollected = false; //private int guiTime = 3;

 // Use this for initialization
 void Start () 
 {
     page = GameObject.Find ("PageTest");
 }
 
 void Update()
 {
     collectItem ();
 }
 
 // Update is called once per frame
 void OnTriggerEnter () 
 {
     showItemMessage = true;
     canbecollected = true;
 }
 
 void collectItem ()
 {
     if(canbecollected)
     {
         if(Input.GetKeyUp (KeyCode.C))
         {
             page.GetComponent(AudioSource).enabled = true;
             Destroy (this.gameObject);
             //showCollectedMessage = true;
             //showItemMessage = false;
             //StartCoroutine(GuiDisplayTimer ());
         }
     }
 }
 
 void OnTriggerExit ()
 {
     showItemMessage = false;
     canbecollected = false;
 }
 
 void OnGUI ()
 {
     if(showItemMessage)
     {
         GUI.Box(new Rect(Screen.width/4, Screen.height/4, 300, 25), "Press C to collect page.");
     }
     
     //if(showCollectedMessage)
     //{
     //    GUI.Box(new Rect(Screen.width/2, 50, 200, 25), "Item Collected");
     //}
 }
 
 //IEnumerator GuiDisplayTimer()
 //{
 //    yield return new WaitForSeconds(guiTime);
 //    
 //    showCollectedMessage = false;
 //}

}